Home / 123,500.24-170,430.12-66,913.04

Finding the Fourth Proportional to 123,500.24, 170,430.12 and 66,913.04

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Solution

The fourth proportional to 123,500.24, 170,430.12 and 66,913.04 is: 92,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,500.24 : 170,430.12 = 66,913.04 : x
  2. Step 2: Convert to fraction form
    123,500.24/170,430.12 = 66,913.04/x
  3. Step 3: Cross multiply
    123,500.24x = 170,430.12 × 66,913.04
  4. Step 4: Simplify right side
    123,500.24x = 11,403,997,436.76
  5. Step 5: Solve for x
    x = 11,403,997,436.76/123,500.24
  6. Step 6: Final answer
    x = 92,339.88

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1.5x scale

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.