Home / 123,269.28-170,111.64-69,565.68

Finding the Fourth Proportional to 123,269.28, 170,111.64 and 69,565.68

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Solution

The fourth proportional to 123,269.28, 170,111.64 and 69,565.68 is: 96,000.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,269.28 : 170,111.64 = 69,565.68 : x
  2. Step 2: Convert to fraction form
    123,269.28/170,111.64 = 69,565.68/x
  3. Step 3: Cross multiply
    123,269.28x = 170,111.64 × 69,565.68
  4. Step 4: Simplify right side
    123,269.28x = 11,833,931,912.52
  5. Step 5: Solve for x
    x = 11,833,931,912.52/123,269.28
  6. Step 6: Final answer
    x = 96,000.66

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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.