Home / 103,360,287.62-142,592,378.02-61,520,892.68

Finding the Fourth Proportional to 103,360,287.62, 142,592,378.02 and 61,520,892.68

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Solution

The fourth proportional to 103,360,287.62, 142,592,378.02 and 61,520,892.68 is: 84,872,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,360,287.62 : 142,592,378.02 = 61,520,892.68 : x
  2. Step 2: Convert to fraction form
    103,360,287.62/142,592,378.02 = 61,520,892.68/x
  3. Step 3: Cross multiply
    103,360,287.62x = 142,592,378.02 × 61,520,892.68
  4. Step 4: Simplify right side
    103,360,287.62x = 8,772,410,385,154,412
  5. Step 5: Solve for x
    x = 8,772,410,385,154,412/103,360,287.62
  6. Step 6: Final answer
    x = 84,872,155.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.