Home / 156,135.17-234,167.71-71,814.32

Finding the Fourth Proportional to 156,135.17, 234,167.71 and 71,814.32

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Solution

The fourth proportional to 156,135.17, 234,167.71 and 71,814.32 is: 107,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,135.17 : 234,167.71 = 71,814.32 : x
  2. Step 2: Convert to fraction form
    156,135.17/234,167.71 = 71,814.32/x
  3. Step 3: Cross multiply
    156,135.17x = 234,167.71 × 71,814.32
  4. Step 4: Simplify right side
    156,135.17x = 16,816,594,656.67
  5. Step 5: Solve for x
    x = 16,816,594,656.67/156,135.17
  6. Step 6: Final answer
    x = 107,705.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.