Home / 155,938.41-215,195.13-84,318.48

Finding the Fourth Proportional to 155,938.41, 215,195.13 and 84,318.48

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Solution

The fourth proportional to 155,938.41, 215,195.13 and 84,318.48 is: 116,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,938.41 : 215,195.13 = 84,318.48 : x
  2. Step 2: Convert to fraction form
    155,938.41/215,195.13 = 84,318.48/x
  3. Step 3: Cross multiply
    155,938.41x = 215,195.13 × 84,318.48
  4. Step 4: Simplify right side
    155,938.41x = 18,144,926,265.00
  5. Step 5: Solve for x
    x = 18,144,926,265.00/155,938.41
  6. Step 6: Final answer
    x = 116,359.57

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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.