Home / 135,867.28-187,502.72-75,437.94

Finding the Fourth Proportional to 135,867.28, 187,502.72 and 75,437.94

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Solution

The fourth proportional to 135,867.28, 187,502.72 and 75,437.94 is: 104,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,867.28 : 187,502.72 = 75,437.94 : x
  2. Step 2: Convert to fraction form
    135,867.28/187,502.72 = 75,437.94/x
  3. Step 3: Cross multiply
    135,867.28x = 187,502.72 × 75,437.94
  4. Step 4: Simplify right side
    135,867.28x = 14,144,818,941.20
  5. Step 5: Solve for x
    x = 14,144,818,941.20/135,867.28
  6. Step 6: Final answer
    x = 104,107.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.