Home / 128,228.10-192,572.55-124,080.90

Finding the Fourth Proportional to 128,228.10, 192,572.55 and 124,080.90

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Solution

The fourth proportional to 128,228.10, 192,572.55 and 124,080.90 is: 186,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,228.10 : 192,572.55 = 124,080.90 : x
  2. Step 2: Convert to fraction form
    128,228.10/192,572.55 = 124,080.90/x
  3. Step 3: Cross multiply
    128,228.10x = 192,572.55 × 124,080.90
  4. Step 4: Simplify right side
    128,228.10x = 23,894,575,319.30
  5. Step 5: Solve for x
    x = 23,894,575,319.30/128,228.10
  6. Step 6: Final answer
    x = 186,344.30

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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.