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Finding the Fourth Proportional to 148,000.60, 222,140.10 and 77,930.20

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Solution

The fourth proportional to 148,000.60, 222,140.10 and 77,930.20 is: 116,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,000.60 : 222,140.10 = 77,930.20 : x
  2. Step 2: Convert to fraction form
    148,000.60/222,140.10 = 77,930.20/x
  3. Step 3: Cross multiply
    148,000.60x = 222,140.10 × 77,930.20
  4. Step 4: Simplify right side
    148,000.60x = 17,311,422,421.02
  5. Step 5: Solve for x
    x = 17,311,422,421.02/148,000.60
  6. Step 6: Final answer
    x = 116,968.60

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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.