Home / 135,687.18-187,254.28-75,253.76

Finding the Fourth Proportional to 135,687.18, 187,254.28 and 75,253.76

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Solution

The fourth proportional to 135,687.18, 187,254.28 and 75,253.76 is: 103,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,687.18 : 187,254.28 = 75,253.76 : x
  2. Step 2: Convert to fraction form
    135,687.18/187,254.28 = 75,253.76/x
  3. Step 3: Cross multiply
    135,687.18x = 187,254.28 × 75,253.76
  4. Step 4: Simplify right side
    135,687.18x = 14,091,588,506.09
  5. Step 5: Solve for x
    x = 14,091,588,506.09/135,687.18
  6. Step 6: Final answer
    x = 103,853.50

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1.5x scale

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.