Home / 156,663.19-216,195.48-85,043.26

Finding the Fourth Proportional to 156,663.19, 216,195.48 and 85,043.26

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Solution

The fourth proportional to 156,663.19, 216,195.48 and 85,043.26 is: 117,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,663.19 : 216,195.48 = 85,043.26 : x
  2. Step 2: Convert to fraction form
    156,663.19/216,195.48 = 85,043.26/x
  3. Step 3: Cross multiply
    156,663.19x = 216,195.48 × 85,043.26
  4. Step 4: Simplify right side
    156,663.19x = 18,385,968,203.86
  5. Step 5: Solve for x
    x = 18,385,968,203.86/156,663.19
  6. Step 6: Final answer
    x = 117,359.85

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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.