Home / 123,025.19-169,774.77-66,436.57

Finding the Fourth Proportional to 123,025.19, 169,774.77 and 66,436.57

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Solution

The fourth proportional to 123,025.19, 169,774.77 and 66,436.57 is: 91,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,025.19 : 169,774.77 = 66,436.57 : x
  2. Step 2: Convert to fraction form
    123,025.19/169,774.77 = 66,436.57/x
  3. Step 3: Cross multiply
    123,025.19x = 169,774.77 × 66,436.57
  4. Step 4: Simplify right side
    123,025.19x = 11,279,252,966.90
  5. Step 5: Solve for x
    x = 11,279,252,966.90/123,025.19
  6. Step 6: Final answer
    x = 91,682.47

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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.