Home / 156,221.11-215,584-84,599.47

Finding the Fourth Proportional to 156,221.11, 215,584 and 84,599.47

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Solution

The fourth proportional to 156,221.11, 215,584 and 84,599.47 is: 116,746.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,221.11 : 215,584 = 84,599.47 : x
  2. Step 2: Convert to fraction form
    156,221.11/215,584 = 84,599.47/x
  3. Step 3: Cross multiply
    156,221.11x = 215,584 × 84,599.47
  4. Step 4: Simplify right side
    156,221.11x = 18,238,292,140.48
  5. Step 5: Solve for x
    x = 18,238,292,140.48/156,221.11
  6. Step 6: Final answer
    x = 116,746.66

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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.