Home / 189,917.28-285,048.72-101,246.40

Finding the Fourth Proportional to 189,917.28, 285,048.72 and 101,246.40

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Solution

The fourth proportional to 189,917.28, 285,048.72 and 101,246.40 is: 151,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,917.28 : 285,048.72 = 101,246.40 : x
  2. Step 2: Convert to fraction form
    189,917.28/285,048.72 = 101,246.40/x
  3. Step 3: Cross multiply
    189,917.28x = 285,048.72 × 101,246.40
  4. Step 4: Simplify right side
    189,917.28x = 28,860,156,724.61
  5. Step 5: Solve for x
    x = 28,860,156,724.61/189,917.28
  6. Step 6: Final answer
    x = 151,961.72

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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.