Home / 123,320.17-170,182.28-66,731.54

Finding the Fourth Proportional to 123,320.17, 170,182.28 and 66,731.54

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Solution

The fourth proportional to 123,320.17, 170,182.28 and 66,731.54 is: 92,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,320.17 : 170,182.28 = 66,731.54 : x
  2. Step 2: Convert to fraction form
    123,320.17/170,182.28 = 66,731.54/x
  3. Step 3: Cross multiply
    123,320.17x = 170,182.28 × 66,731.54
  4. Step 4: Simplify right side
    123,320.17x = 11,356,525,625.11
  5. Step 5: Solve for x
    x = 11,356,525,625.11/123,320.17
  6. Step 6: Final answer
    x = 92,089.77

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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.