Home / 142,808.85-214,170.10-42,942.53

Finding the Fourth Proportional to 142,808.85, 214,170.10 and 42,942.53

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Solution

The fourth proportional to 142,808.85, 214,170.10 and 42,942.53 is: 64,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,808.85 : 214,170.10 = 42,942.53 : x
  2. Step 2: Convert to fraction form
    142,808.85/214,170.10 = 42,942.53/x
  3. Step 3: Cross multiply
    142,808.85x = 214,170.10 × 42,942.53
  4. Step 4: Simplify right side
    142,808.85x = 9,197,006,372.42
  5. Step 5: Solve for x
    x = 9,197,006,372.42/142,808.85
  6. Step 6: Final answer
    x = 64,400.82

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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.