Home / 123,320.54-170,182.80-66,731.92

Finding the Fourth Proportional to 123,320.54, 170,182.80 and 66,731.92

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Solution

The fourth proportional to 123,320.54, 170,182.80 and 66,731.92 is: 92,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,320.54 : 170,182.80 = 66,731.92 : x
  2. Step 2: Convert to fraction form
    123,320.54/170,182.80 = 66,731.92/x
  3. Step 3: Cross multiply
    123,320.54x = 170,182.80 × 66,731.92
  4. Step 4: Simplify right side
    123,320.54x = 11,356,624,569.52
  5. Step 5: Solve for x
    x = 11,356,624,569.52/123,320.54
  6. Step 6: Final answer
    x = 92,090.29

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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.