Home / 122,757.32-169,418.10-75,038.60

Finding the Fourth Proportional to 122,757.32, 169,418.10 and 75,038.60

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Solution

The fourth proportional to 122,757.32, 169,418.10 and 75,038.60 is: 103,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,757.32 : 169,418.10 = 75,038.60 : x
  2. Step 2: Convert to fraction form
    122,757.32/169,418.10 = 75,038.60/x
  3. Step 3: Cross multiply
    122,757.32x = 169,418.10 × 75,038.60
  4. Step 4: Simplify right side
    122,757.32x = 12,712,897,038.66
  5. Step 5: Solve for x
    x = 12,712,897,038.66/122,757.32
  6. Step 6: Final answer
    x = 103,561.21

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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.