Home / 261,026.47-391,613.21-101,150.70

Finding the Fourth Proportional to 261,026.47, 391,613.21 and 101,150.70

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Solution

The fourth proportional to 261,026.47, 391,613.21 and 101,150.70 is: 151,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,026.47 : 391,613.21 = 101,150.70 : x
  2. Step 2: Convert to fraction form
    261,026.47/391,613.21 = 101,150.70/x
  3. Step 3: Cross multiply
    261,026.47x = 391,613.21 × 101,150.70
  4. Step 4: Simplify right side
    261,026.47x = 39,611,950,320.75
  5. Step 5: Solve for x
    x = 39,611,950,320.75/261,026.47
  6. Step 6: Final answer
    x = 151,754.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.