Home / 125,011.47-172,514.60-67,649.56

Finding the Fourth Proportional to 125,011.47, 172,514.60 and 67,649.56

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Solution

The fourth proportional to 125,011.47, 172,514.60 and 67,649.56 is: 93,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,011.47 : 172,514.60 = 67,649.56 : x
  2. Step 2: Convert to fraction form
    125,011.47/172,514.60 = 67,649.56/x
  3. Step 3: Cross multiply
    125,011.47x = 172,514.60 × 67,649.56
  4. Step 4: Simplify right side
    125,011.47x = 11,670,537,295.19
  5. Step 5: Solve for x
    x = 11,670,537,295.19/125,011.47
  6. Step 6: Final answer
    x = 93,355.73

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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.