Home / 123,349.72-170,224.01-72,363.32

Finding the Fourth Proportional to 123,349.72, 170,224.01 and 72,363.32

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Solution

The fourth proportional to 123,349.72, 170,224.01 and 72,363.32 is: 99,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,349.72 : 170,224.01 = 72,363.32 : x
  2. Step 2: Convert to fraction form
    123,349.72/170,224.01 = 72,363.32/x
  3. Step 3: Cross multiply
    123,349.72x = 170,224.01 × 72,363.32
  4. Step 4: Simplify right side
    123,349.72x = 12,317,974,204.08
  5. Step 5: Solve for x
    x = 12,317,974,204.08/123,349.72
  6. Step 6: Final answer
    x = 99,862.20

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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.