Home / 123,439.77-170,347.68-66,851.13

Finding the Fourth Proportional to 123,439.77, 170,347.68 and 66,851.13

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Solution

The fourth proportional to 123,439.77, 170,347.68 and 66,851.13 is: 92,254.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,439.77 : 170,347.68 = 66,851.13 : x
  2. Step 2: Convert to fraction form
    123,439.77/170,347.68 = 66,851.13/x
  3. Step 3: Cross multiply
    123,439.77x = 170,347.68 × 66,851.13
  4. Step 4: Simplify right side
    123,439.77x = 11,387,934,900.88
  5. Step 5: Solve for x
    x = 11,387,934,900.88/123,439.77
  6. Step 6: Final answer
    x = 92,254.99

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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.