Home / 103,823.20-155,516.10-84,140.20

Finding the Fourth Proportional to 103,823.20, 155,516.10 and 84,140.20

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Solution

The fourth proportional to 103,823.20, 155,516.10 and 84,140.20 is: 126,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,823.20 : 155,516.10 = 84,140.20 : x
  2. Step 2: Convert to fraction form
    103,823.20/155,516.10 = 84,140.20/x
  3. Step 3: Cross multiply
    103,823.20x = 155,516.10 × 84,140.20
  4. Step 4: Simplify right side
    103,823.20x = 13,085,155,757.22
  5. Step 5: Solve for x
    x = 13,085,155,757.22/103,823.20
  6. Step 6: Final answer
    x = 126,033.06

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1.5x scale

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.