Home / 103,665,376.20-155,498,064.30-102,153,721.80

Finding the Fourth Proportional to 103,665,376.20, 155,498,064.30 and 102,153,721.80

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Solution

The fourth proportional to 103,665,376.20, 155,498,064.30 and 102,153,721.80 is: 153,230,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665,376.20 : 155,498,064.30 = 102,153,721.80 : x
  2. Step 2: Convert to fraction form
    103,665,376.20/155,498,064.30 = 102,153,721.80/x
  3. Step 3: Cross multiply
    103,665,376.20x = 155,498,064.30 × 102,153,721.80
  4. Step 4: Simplify right side
    103,665,376.20x = 15,884,706,000,940,712
  5. Step 5: Solve for x
    x = 15,884,706,000,940,712/103,665,376.20
  6. Step 6: Final answer
    x = 153,230,582.70

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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.