Home / 215,340.20-297,179.20-124,700.12

Finding the Fourth Proportional to 215,340.20, 297,179.20 and 124,700.12

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Solution

The fourth proportional to 215,340.20, 297,179.20 and 124,700.12 is: 172,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,340.20 : 297,179.20 = 124,700.12 : x
  2. Step 2: Convert to fraction form
    215,340.20/297,179.20 = 124,700.12/x
  3. Step 3: Cross multiply
    215,340.20x = 297,179.20 × 124,700.12
  4. Step 4: Simplify right side
    215,340.20x = 37,058,281,901.50
  5. Step 5: Solve for x
    x = 37,058,281,901.50/215,340.20
  6. Step 6: Final answer
    x = 172,091.80

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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.