Home / 123,497.18-170,426.28-66,908.56

Finding the Fourth Proportional to 123,497.18, 170,426.28 and 66,908.56

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Solution

The fourth proportional to 123,497.18, 170,426.28 and 66,908.56 is: 92,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,497.18 : 170,426.28 = 66,908.56 : x
  2. Step 2: Convert to fraction form
    123,497.18/170,426.28 = 66,908.56/x
  3. Step 3: Cross multiply
    123,497.18x = 170,426.28 × 66,908.56
  4. Step 4: Simplify right side
    123,497.18x = 11,402,976,980.96
  5. Step 5: Solve for x
    x = 11,402,976,980.96/123,497.18
  6. Step 6: Final answer
    x = 92,333.91

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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.