Home / 125,147.36-172,707.65-68,558.72

Finding the Fourth Proportional to 125,147.36, 172,707.65 and 68,558.72

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Solution

The fourth proportional to 125,147.36, 172,707.65 and 68,558.72 is: 94,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,147.36 : 172,707.65 = 68,558.72 : x
  2. Step 2: Convert to fraction form
    125,147.36/172,707.65 = 68,558.72/x
  3. Step 3: Cross multiply
    125,147.36x = 172,707.65 × 68,558.72
  4. Step 4: Simplify right side
    125,147.36x = 11,840,614,726.07
  5. Step 5: Solve for x
    x = 11,840,614,726.07/125,147.36
  6. Step 6: Final answer
    x = 94,613.38

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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.