Home / 103,629.71-155,444.55-68,561.16

Finding the Fourth Proportional to 103,629.71, 155,444.55 and 68,561.16

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Solution

The fourth proportional to 103,629.71, 155,444.55 and 68,561.16 is: 102,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.71 : 155,444.55 = 68,561.16 : x
  2. Step 2: Convert to fraction form
    103,629.71/155,444.55 = 68,561.16/x
  3. Step 3: Cross multiply
    103,629.71x = 155,444.55 × 68,561.16
  4. Step 4: Simplify right side
    103,629.71x = 10,657,458,663.68
  5. Step 5: Solve for x
    x = 10,657,458,663.68/103,629.71
  6. Step 6: Final answer
    x = 102,841.74

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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.