Home / 100,972.20-151,458.30-29,897.40

Finding the Fourth Proportional to 100,972.20, 151,458.30 and 29,897.40

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Solution

The fourth proportional to 100,972.20, 151,458.30 and 29,897.40 is: 44,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,972.20 : 151,458.30 = 29,897.40 : x
  2. Step 2: Convert to fraction form
    100,972.20/151,458.30 = 29,897.40/x
  3. Step 3: Cross multiply
    100,972.20x = 151,458.30 × 29,897.40
  4. Step 4: Simplify right side
    100,972.20x = 4,528,209,378.42
  5. Step 5: Solve for x
    x = 4,528,209,378.42/100,972.20
  6. Step 6: Final answer
    x = 44,846.10

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Similar ratio
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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.