Home / 125,425.56-173,168.32-77,729.52

Finding the Fourth Proportional to 125,425.56, 173,168.32 and 77,729.52

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Solution

The fourth proportional to 125,425.56, 173,168.32 and 77,729.52 is: 107,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,425.56 : 173,168.32 = 77,729.52 : x
  2. Step 2: Convert to fraction form
    125,425.56/173,168.32 = 77,729.52/x
  3. Step 3: Cross multiply
    125,425.56x = 173,168.32 × 77,729.52
  4. Step 4: Simplify right side
    125,425.56x = 13,460,290,392.81
  5. Step 5: Solve for x
    x = 13,460,290,392.81/125,425.56
  6. Step 6: Final answer
    x = 107,316.96

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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.