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Finding the Fourth Proportional to 148,510.10, 222,765.15 and 78,526.10

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Solution

The fourth proportional to 148,510.10, 222,765.15 and 78,526.10 is: 117,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,510.10 : 222,765.15 = 78,526.10 : x
  2. Step 2: Convert to fraction form
    148,510.10/222,765.15 = 78,526.10/x
  3. Step 3: Cross multiply
    148,510.10x = 222,765.15 × 78,526.10
  4. Step 4: Simplify right side
    148,510.10x = 17,492,878,445.42
  5. Step 5: Solve for x
    x = 17,492,878,445.42/148,510.10
  6. Step 6: Final answer
    x = 117,789.15

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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.