Home / 142,691.05-214,038.66-67,818.84

Finding the Fourth Proportional to 142,691.05, 214,038.66 and 67,818.84

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Solution

The fourth proportional to 142,691.05, 214,038.66 and 67,818.84 is: 101,729.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,691.05 : 214,038.66 = 67,818.84 : x
  2. Step 2: Convert to fraction form
    142,691.05/214,038.66 = 67,818.84/x
  3. Step 3: Cross multiply
    142,691.05x = 214,038.66 × 67,818.84
  4. Step 4: Simplify right side
    142,691.05x = 14,515,853,636.35
  5. Step 5: Solve for x
    x = 14,515,853,636.35/142,691.05
  6. Step 6: Final answer
    x = 101,729.25

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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.