Home / 115,439.90-173,159.85-103,630.10

Finding the Fourth Proportional to 115,439.90, 173,159.85 and 103,630.10

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Solution

The fourth proportional to 115,439.90, 173,159.85 and 103,630.10 is: 155,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,439.90 : 173,159.85 = 103,630.10 : x
  2. Step 2: Convert to fraction form
    115,439.90/173,159.85 = 103,630.10/x
  3. Step 3: Cross multiply
    115,439.90x = 173,159.85 × 103,630.10
  4. Step 4: Simplify right side
    115,439.90x = 17,944,572,571.49
  5. Step 5: Solve for x
    x = 17,944,572,571.49/115,439.90
  6. Step 6: Final answer
    x = 155,445.15

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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.