Home / 189,862.72-284,269.12-142,973.44

Finding the Fourth Proportional to 189,862.72, 284,269.12 and 142,973.44

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Solution

The fourth proportional to 189,862.72, 284,269.12 and 142,973.44 is: 214,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,862.72 : 284,269.12 = 142,973.44 : x
  2. Step 2: Convert to fraction form
    189,862.72/284,269.12 = 142,973.44/x
  3. Step 3: Cross multiply
    189,862.72x = 284,269.12 × 142,973.44
  4. Step 4: Simplify right side
    189,862.72x = 40,642,933,972.17
  5. Step 5: Solve for x
    x = 40,642,933,972.17/189,862.72
  6. Step 6: Final answer
    x = 214,064.85

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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.