Home / 103,043.40-154,565.10-102,387.30

Finding the Fourth Proportional to 103,043.40, 154,565.10 and 102,387.30

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Solution

The fourth proportional to 103,043.40, 154,565.10 and 102,387.30 is: 153,580.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,043.40 : 154,565.10 = 102,387.30 : x
  2. Step 2: Convert to fraction form
    103,043.40/154,565.10 = 102,387.30/x
  3. Step 3: Cross multiply
    103,043.40x = 154,565.10 × 102,387.30
  4. Step 4: Simplify right side
    103,043.40x = 15,825,503,263.23
  5. Step 5: Solve for x
    x = 15,825,503,263.23/103,043.40
  6. Step 6: Final answer
    x = 153,580.95

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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.