Home / 135,732.70-187,312.25-75,307.31

Finding the Fourth Proportional to 135,732.70, 187,312.25 and 75,307.31

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Solution

The fourth proportional to 135,732.70, 187,312.25 and 75,307.31 is: 103,924.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,732.70 : 187,312.25 = 75,307.31 : x
  2. Step 2: Convert to fraction form
    135,732.70/187,312.25 = 75,307.31/x
  3. Step 3: Cross multiply
    135,732.70x = 187,312.25 × 75,307.31
  4. Step 4: Simplify right side
    135,732.70x = 14,105,980,929.25
  5. Step 5: Solve for x
    x = 14,105,980,929.25/135,732.70
  6. Step 6: Final answer
    x = 103,924.71

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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.