Home / 125,254.15-172,847.15-71,538.05

Finding the Fourth Proportional to 125,254.15, 172,847.15 and 71,538.05

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Solution

The fourth proportional to 125,254.15, 172,847.15 and 71,538.05 is: 98,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,254.15 : 172,847.15 = 71,538.05 : x
  2. Step 2: Convert to fraction form
    125,254.15/172,847.15 = 71,538.05/x
  3. Step 3: Cross multiply
    125,254.15x = 172,847.15 × 71,538.05
  4. Step 4: Simplify right side
    125,254.15x = 12,365,148,401.75
  5. Step 5: Solve for x
    x = 12,365,148,401.75/125,254.15
  6. Step 6: Final answer
    x = 98,720.47

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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.