Home / 142,731.44-214,102.02-67,812.92

Finding the Fourth Proportional to 142,731.44, 214,102.02 and 67,812.92

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Solution

The fourth proportional to 142,731.44, 214,102.02 and 67,812.92 is: 101,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,731.44 : 214,102.02 = 67,812.92 : x
  2. Step 2: Convert to fraction form
    142,731.44/214,102.02 = 67,812.92/x
  3. Step 3: Cross multiply
    142,731.44x = 214,102.02 × 67,812.92
  4. Step 4: Simplify right side
    142,731.44x = 14,518,883,154.10
  5. Step 5: Solve for x
    x = 14,518,883,154.10/142,731.44
  6. Step 6: Final answer
    x = 101,721.69

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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.