Home / 153,934.20-230,901.30-90,948.60

Finding the Fourth Proportional to 153,934.20, 230,901.30 and 90,948.60

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Solution

The fourth proportional to 153,934.20, 230,901.30 and 90,948.60 is: 136,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.20 : 230,901.30 = 90,948.60 : x
  2. Step 2: Convert to fraction form
    153,934.20/230,901.30 = 90,948.60/x
  3. Step 3: Cross multiply
    153,934.20x = 230,901.30 × 90,948.60
  4. Step 4: Simplify right side
    153,934.20x = 21,000,149,973.18
  5. Step 5: Solve for x
    x = 21,000,149,973.18/153,934.20
  6. Step 6: Final answer
    x = 136,422.90

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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.