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Finding the Fourth Proportional to 148,850.60, 223,275.90 and 78,866.60

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Solution

The fourth proportional to 148,850.60, 223,275.90 and 78,866.60 is: 118,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,850.60 : 223,275.90 = 78,866.60 : x
  2. Step 2: Convert to fraction form
    148,850.60/223,275.90 = 78,866.60/x
  3. Step 3: Cross multiply
    148,850.60x = 223,275.90 × 78,866.60
  4. Step 4: Simplify right side
    148,850.60x = 17,609,011,094.94
  5. Step 5: Solve for x
    x = 17,609,011,094.94/148,850.60
  6. Step 6: Final answer
    x = 118,299.90

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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.