Home / 155,938.90-234,023.55-103,330.90

Finding the Fourth Proportional to 155,938.90, 234,023.55 and 103,330.90

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Solution

The fourth proportional to 155,938.90, 234,023.55 and 103,330.90 is: 155,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,938.90 : 234,023.55 = 103,330.90 : x
  2. Step 2: Convert to fraction form
    155,938.90/234,023.55 = 103,330.90/x
  3. Step 3: Cross multiply
    155,938.90x = 234,023.55 × 103,330.90
  4. Step 4: Simplify right side
    155,938.90x = 24,181,864,042.70
  5. Step 5: Solve for x
    x = 24,181,864,042.70/155,938.90
  6. Step 6: Final answer
    x = 155,072.69

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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.