Home / 156,941.64-216,614.04-103,231.68

Finding the Fourth Proportional to 156,941.64, 216,614.04 and 103,231.68

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Solution

The fourth proportional to 156,941.64, 216,614.04 and 103,231.68 is: 142,482.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.64 : 216,614.04 = 103,231.68 : x
  2. Step 2: Convert to fraction form
    156,941.64/216,614.04 = 103,231.68/x
  3. Step 3: Cross multiply
    156,941.64x = 216,614.04 × 103,231.68
  4. Step 4: Simplify right side
    156,941.64x = 22,361,431,260.79
  5. Step 5: Solve for x
    x = 22,361,431,260.79/156,941.64
  6. Step 6: Final answer
    x = 142,482.46

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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.