Home / 297,117.20-445,715.49-86,752.10

Finding the Fourth Proportional to 297,117.20, 445,715.49 and 86,752.10

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Solution

The fourth proportional to 297,117.20, 445,715.49 and 86,752.10 is: 130,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,117.20 : 445,715.49 = 86,752.10 : x
  2. Step 2: Convert to fraction form
    297,117.20/445,715.49 = 86,752.10/x
  3. Step 3: Cross multiply
    297,117.20x = 445,715.49 × 86,752.10
  4. Step 4: Simplify right side
    297,117.20x = 38,666,752,531.45
  5. Step 5: Solve for x
    x = 38,666,752,531.45/297,117.20
  6. Step 6: Final answer
    x = 130,139.73

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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.