Home / 103,326.68-142,658.06-63,063.78

Finding the Fourth Proportional to 103,326.68, 142,658.06 and 63,063.78

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Solution

The fourth proportional to 103,326.68, 142,658.06 and 63,063.78 is: 87,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,326.68 : 142,658.06 = 63,063.78 : x
  2. Step 2: Convert to fraction form
    103,326.68/142,658.06 = 63,063.78/x
  3. Step 3: Cross multiply
    103,326.68x = 142,658.06 × 63,063.78
  4. Step 4: Simplify right side
    103,326.68x = 8,996,556,817.97
  5. Step 5: Solve for x
    x = 8,996,556,817.97/103,326.68
  6. Step 6: Final answer
    x = 87,069.06

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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.