Home / 123,034.09-169,787.01-66,445.48

Finding the Fourth Proportional to 123,034.09, 169,787.01 and 66,445.48

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Solution

The fourth proportional to 123,034.09, 169,787.01 and 66,445.48 is: 91,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,034.09 : 169,787.01 = 66,445.48 : x
  2. Step 2: Convert to fraction form
    123,034.09/169,787.01 = 66,445.48/x
  3. Step 3: Cross multiply
    123,034.09x = 169,787.01 × 66,445.48
  4. Step 4: Simplify right side
    123,034.09x = 11,281,579,377.21
  5. Step 5: Solve for x
    x = 11,281,579,377.21/123,034.09
  6. Step 6: Final answer
    x = 91,694.74

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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.