Home / 125,148.18-172,662.27-71,395.38

Finding the Fourth Proportional to 125,148.18, 172,662.27 and 71,395.38

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Solution

The fourth proportional to 125,148.18, 172,662.27 and 71,395.38 is: 98,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,148.18 : 172,662.27 = 71,395.38 : x
  2. Step 2: Convert to fraction form
    125,148.18/172,662.27 = 71,395.38/x
  3. Step 3: Cross multiply
    125,148.18x = 172,662.27 × 71,395.38
  4. Step 4: Simplify right side
    125,148.18x = 12,327,288,378.31
  5. Step 5: Solve for x
    x = 12,327,288,378.31/125,148.18
  6. Step 6: Final answer
    x = 98,501.54

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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.