Home / 125,005.08-172,502.82-71,307.48

Finding the Fourth Proportional to 125,005.08, 172,502.82 and 71,307.48

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Solution

The fourth proportional to 125,005.08, 172,502.82 and 71,307.48 is: 98,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005.08 : 172,502.82 = 71,307.48 : x
  2. Step 2: Convert to fraction form
    125,005.08/172,502.82 = 71,307.48/x
  3. Step 3: Cross multiply
    125,005.08x = 172,502.82 × 71,307.48
  4. Step 4: Simplify right side
    125,005.08x = 12,300,741,387.09
  5. Step 5: Solve for x
    x = 12,300,741,387.09/125,005.08
  6. Step 6: Final answer
    x = 98,401.93

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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.