Home / 155,711.48-214,881.84-84,091.52

Finding the Fourth Proportional to 155,711.48, 214,881.84 and 84,091.52

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Solution

The fourth proportional to 155,711.48, 214,881.84 and 84,091.52 is: 116,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,711.48 : 214,881.84 = 84,091.52 : x
  2. Step 2: Convert to fraction form
    155,711.48/214,881.84 = 84,091.52/x
  3. Step 3: Cross multiply
    155,711.48x = 214,881.84 × 84,091.52
  4. Step 4: Simplify right side
    155,711.48x = 18,069,739,471.59
  5. Step 5: Solve for x
    x = 18,069,739,471.59/155,711.48
  6. Step 6: Final answer
    x = 116,046.29

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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.