Home / 156,142.90-234,345.87-67,463.62

Finding the Fourth Proportional to 156,142.90, 234,345.87 and 67,463.62

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Solution

The fourth proportional to 156,142.90, 234,345.87 and 67,463.62 is: 101,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,142.90 : 234,345.87 = 67,463.62 : x
  2. Step 2: Convert to fraction form
    156,142.90/234,345.87 = 67,463.62/x
  3. Step 3: Cross multiply
    156,142.90x = 234,345.87 × 67,463.62
  4. Step 4: Simplify right side
    156,142.90x = 15,809,820,722.25
  5. Step 5: Solve for x
    x = 15,809,820,722.25/156,142.90
  6. Step 6: Final answer
    x = 101,252.25

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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.