Home / 261,205.92-391,677.66-121,062.96

Finding the Fourth Proportional to 261,205.92, 391,677.66 and 121,062.96

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Solution

The fourth proportional to 261,205.92, 391,677.66 and 121,062.96 is: 181,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,205.92 : 391,677.66 = 121,062.96 : x
  2. Step 2: Convert to fraction form
    261,205.92/391,677.66 = 121,062.96/x
  3. Step 3: Cross multiply
    261,205.92x = 391,677.66 × 121,062.96
  4. Step 4: Simplify right side
    261,205.92x = 47,417,656,885.47
  5. Step 5: Solve for x
    x = 47,417,656,885.47/261,205.92
  6. Step 6: Final answer
    x = 181,533.62

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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.