Home / 123,624.20-185,436.30-115,329.80

Finding the Fourth Proportional to 123,624.20, 185,436.30 and 115,329.80

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Solution

The fourth proportional to 123,624.20, 185,436.30 and 115,329.80 is: 172,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,624.20 : 185,436.30 = 115,329.80 : x
  2. Step 2: Convert to fraction form
    123,624.20/185,436.30 = 115,329.80/x
  3. Step 3: Cross multiply
    123,624.20x = 185,436.30 × 115,329.80
  4. Step 4: Simplify right side
    123,624.20x = 21,386,331,391.74
  5. Step 5: Solve for x
    x = 21,386,331,391.74/123,624.20
  6. Step 6: Final answer
    x = 172,994.70

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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.