Home / 155,761.11-214,950.15-84,141.12

Finding the Fourth Proportional to 155,761.11, 214,950.15 and 84,141.12

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Solution

The fourth proportional to 155,761.11, 214,950.15 and 84,141.12 is: 116,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,761.11 : 214,950.15 = 84,141.12 : x
  2. Step 2: Convert to fraction form
    155,761.11/214,950.15 = 84,141.12/x
  3. Step 3: Cross multiply
    155,761.11x = 214,950.15 × 84,141.12
  4. Step 4: Simplify right side
    155,761.11x = 18,086,146,365.17
  5. Step 5: Solve for x
    x = 18,086,146,365.17/155,761.11
  6. Step 6: Final answer
    x = 116,114.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.