Home / 103,678.30-155,323.05-96,679.90

Finding the Fourth Proportional to 103,678.30, 155,323.05 and 96,679.90

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Solution

The fourth proportional to 103,678.30, 155,323.05 and 96,679.90 is: 144,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.30 : 155,323.05 = 96,679.90 : x
  2. Step 2: Convert to fraction form
    103,678.30/155,323.05 = 96,679.90/x
  3. Step 3: Cross multiply
    103,678.30x = 155,323.05 × 96,679.90
  4. Step 4: Simplify right side
    103,678.30x = 15,016,616,941.70
  5. Step 5: Solve for x
    x = 15,016,616,941.70/103,678.30
  6. Step 6: Final answer
    x = 144,838.57

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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.