Home / 148,515.10-222,772.65-78,531.10

Finding the Fourth Proportional to 148,515.10, 222,772.65 and 78,531.10

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Solution

The fourth proportional to 148,515.10, 222,772.65 and 78,531.10 is: 117,796.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,515.10 : 222,772.65 = 78,531.10 : x
  2. Step 2: Convert to fraction form
    148,515.10/222,772.65 = 78,531.10/x
  3. Step 3: Cross multiply
    148,515.10x = 222,772.65 × 78,531.10
  4. Step 4: Simplify right side
    148,515.10x = 17,494,581,254.42
  5. Step 5: Solve for x
    x = 17,494,581,254.42/148,515.10
  6. Step 6: Final answer
    x = 117,796.65

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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.