Home / 123,583.32-170,538.31-69,865.13

Finding the Fourth Proportional to 123,583.32, 170,538.31 and 69,865.13

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Solution

The fourth proportional to 123,583.32, 170,538.31 and 69,865.13 is: 96,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,583.32 : 170,538.31 = 69,865.13 : x
  2. Step 2: Convert to fraction form
    123,583.32/170,538.31 = 69,865.13/x
  3. Step 3: Cross multiply
    123,583.32x = 170,538.31 × 69,865.13
  4. Step 4: Simplify right side
    123,583.32x = 11,914,681,711.81
  5. Step 5: Solve for x
    x = 11,914,681,711.81/123,583.32
  6. Step 6: Final answer
    x = 96,410.11

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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.