Home / 103,680.30-155,326.05-96,681.90

Finding the Fourth Proportional to 103,680.30, 155,326.05 and 96,681.90

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Solution

The fourth proportional to 103,680.30, 155,326.05 and 96,681.90 is: 144,841.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.30 : 155,326.05 = 96,681.90 : x
  2. Step 2: Convert to fraction form
    103,680.30/155,326.05 = 96,681.90/x
  3. Step 3: Cross multiply
    103,680.30x = 155,326.05 × 96,681.90
  4. Step 4: Simplify right side
    103,680.30x = 15,017,217,633.50
  5. Step 5: Solve for x
    x = 15,017,217,633.50/103,680.30
  6. Step 6: Final answer
    x = 144,841.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.