Home / 125,507.86-173,201.79-71,789.56

Finding the Fourth Proportional to 125,507.86, 173,201.79 and 71,789.56

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Solution

The fourth proportional to 125,507.86, 173,201.79 and 71,789.56 is: 99,070.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,507.86 : 173,201.79 = 71,789.56 : x
  2. Step 2: Convert to fraction form
    125,507.86/173,201.79 = 71,789.56/x
  3. Step 3: Cross multiply
    125,507.86x = 173,201.79 × 71,789.56
  4. Step 4: Simplify right side
    125,507.86x = 12,434,080,295.31
  5. Step 5: Solve for x
    x = 12,434,080,295.31/125,507.86
  6. Step 6: Final answer
    x = 99,070.13

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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.