Home / 103,665,347.70-155,498,021.55-102,153,693.30

Finding the Fourth Proportional to 103,665,347.70, 155,498,021.55 and 102,153,693.30

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Solution

The fourth proportional to 103,665,347.70, 155,498,021.55 and 102,153,693.30 is: 153,230,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665,347.70 : 155,498,021.55 = 102,153,693.30 : x
  2. Step 2: Convert to fraction form
    103,665,347.70/155,498,021.55 = 102,153,693.30/x
  3. Step 3: Cross multiply
    103,665,347.70x = 155,498,021.55 × 102,153,693.30
  4. Step 4: Simplify right side
    103,665,347.70x = 15,884,697,202,175,492
  5. Step 5: Solve for x
    x = 15,884,697,202,175,492/103,665,347.70
  6. Step 6: Final answer
    x = 153,230,539.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.