Home / 135,836.70-187,456.72-75,411.24

Finding the Fourth Proportional to 135,836.70, 187,456.72 and 75,411.24

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Solution

The fourth proportional to 135,836.70, 187,456.72 and 75,411.24 is: 104,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,836.70 : 187,456.72 = 75,411.24 : x
  2. Step 2: Convert to fraction form
    135,836.70/187,456.72 = 75,411.24/x
  3. Step 3: Cross multiply
    135,836.70x = 187,456.72 × 75,411.24
  4. Step 4: Simplify right side
    135,836.70x = 14,136,343,701.53
  5. Step 5: Solve for x
    x = 14,136,343,701.53/135,836.70
  6. Step 6: Final answer
    x = 104,068.66

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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.