Home / 125,114.11-172,669.88-71,407.26

Finding the Fourth Proportional to 125,114.11, 172,669.88 and 71,407.26

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Solution

The fourth proportional to 125,114.11, 172,669.88 and 71,407.26 is: 98,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,114.11 : 172,669.88 = 71,407.26 : x
  2. Step 2: Convert to fraction form
    125,114.11/172,669.88 = 71,407.26/x
  3. Step 3: Cross multiply
    125,114.11x = 172,669.88 × 71,407.26
  4. Step 4: Simplify right side
    125,114.11x = 12,329,883,193.85
  5. Step 5: Solve for x
    x = 12,329,883,193.85/125,114.11
  6. Step 6: Final answer
    x = 98,549.10

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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.