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Finding the Fourth Proportional to 153,000.60, 229,500.90 and 74,122.80

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Solution

The fourth proportional to 153,000.60, 229,500.90 and 74,122.80 is: 111,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,000.60 : 229,500.90 = 74,122.80 : x
  2. Step 2: Convert to fraction form
    153,000.60/229,500.90 = 74,122.80/x
  3. Step 3: Cross multiply
    153,000.60x = 229,500.90 × 74,122.80
  4. Step 4: Simplify right side
    153,000.60x = 17,011,249,310.52
  5. Step 5: Solve for x
    x = 17,011,249,310.52/153,000.60
  6. Step 6: Final answer
    x = 111,184.20

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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.