Home / 123,349.02-170,221.98-66,760.80

Finding the Fourth Proportional to 123,349.02, 170,221.98 and 66,760.80

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Solution

The fourth proportional to 123,349.02, 170,221.98 and 66,760.80 is: 92,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,349.02 : 170,221.98 = 66,760.80 : x
  2. Step 2: Convert to fraction form
    123,349.02/170,221.98 = 66,760.80/x
  3. Step 3: Cross multiply
    123,349.02x = 170,221.98 × 66,760.80
  4. Step 4: Simplify right side
    123,349.02x = 11,364,155,562.38
  5. Step 5: Solve for x
    x = 11,364,155,562.38/123,349.02
  6. Step 6: Final answer
    x = 92,130.08

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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.