Home / 156,799.48-216,384.78-85,180.04

Finding the Fourth Proportional to 156,799.48, 216,384.78 and 85,180.04

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Solution

The fourth proportional to 156,799.48, 216,384.78 and 85,180.04 is: 117,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.48 : 216,384.78 = 85,180.04 : x
  2. Step 2: Convert to fraction form
    156,799.48/216,384.78 = 85,180.04/x
  3. Step 3: Cross multiply
    156,799.48x = 216,384.78 × 85,180.04
  4. Step 4: Simplify right side
    156,799.48x = 18,431,664,215.79
  5. Step 5: Solve for x
    x = 18,431,664,215.79/156,799.48
  6. Step 6: Final answer
    x = 117,549.27

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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.