Home / 156,299.60-215,693.16-84,681.44

Finding the Fourth Proportional to 156,299.60, 215,693.16 and 84,681.44

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Solution

The fourth proportional to 156,299.60, 215,693.16 and 84,681.44 is: 116,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,299.60 : 215,693.16 = 84,681.44 : x
  2. Step 2: Convert to fraction form
    156,299.60/215,693.16 = 84,681.44/x
  3. Step 3: Cross multiply
    156,299.60x = 215,693.16 × 84,681.44
  4. Step 4: Simplify right side
    156,299.60x = 18,265,207,386.95
  5. Step 5: Solve for x
    x = 18,265,207,386.95/156,299.60
  6. Step 6: Final answer
    x = 116,860.23

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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.