Home / 125,144.15-172,711.31-71,437.23

Finding the Fourth Proportional to 125,144.15, 172,711.31 and 71,437.23

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Solution

The fourth proportional to 125,144.15, 172,711.31 and 71,437.23 is: 98,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,144.15 : 172,711.31 = 71,437.23 : x
  2. Step 2: Convert to fraction form
    125,144.15/172,711.31 = 71,437.23/x
  3. Step 3: Cross multiply
    125,144.15x = 172,711.31 × 71,437.23
  4. Step 4: Simplify right side
    125,144.15x = 12,338,017,218.89
  5. Step 5: Solve for x
    x = 12,338,017,218.89/125,144.15
  6. Step 6: Final answer
    x = 98,590.45

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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.