Home / 155,267.78-232,735.55-80,312.46

Finding the Fourth Proportional to 155,267.78, 232,735.55 and 80,312.46

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Solution

The fourth proportional to 155,267.78, 232,735.55 and 80,312.46 is: 120,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,267.78 : 232,735.55 = 80,312.46 : x
  2. Step 2: Convert to fraction form
    155,267.78/232,735.55 = 80,312.46/x
  3. Step 3: Cross multiply
    155,267.78x = 232,735.55 × 80,312.46
  4. Step 4: Simplify right side
    155,267.78x = 18,691,564,148.39
  5. Step 5: Solve for x
    x = 18,691,564,148.39/155,267.78
  6. Step 6: Final answer
    x = 120,382.77

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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.