Home / 125,612.20-173,309.70-77,867.56

Finding the Fourth Proportional to 125,612.20, 173,309.70 and 77,867.56

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Solution

The fourth proportional to 125,612.20, 173,309.70 and 77,867.56 is: 107,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,612.20 : 173,309.70 = 77,867.56 : x
  2. Step 2: Convert to fraction form
    125,612.20/173,309.70 = 77,867.56/x
  3. Step 3: Cross multiply
    125,612.20x = 173,309.70 × 77,867.56
  4. Step 4: Simplify right side
    125,612.20x = 13,495,203,463.33
  5. Step 5: Solve for x
    x = 13,495,203,463.33/125,612.20
  6. Step 6: Final answer
    x = 107,435.45

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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.