Home / 107,104.32-148,445.10-105,112.80

Finding the Fourth Proportional to 107,104.32, 148,445.10 and 105,112.80

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Solution

The fourth proportional to 107,104.32, 148,445.10 and 105,112.80 is: 145,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,104.32 : 148,445.10 = 105,112.80 : x
  2. Step 2: Convert to fraction form
    107,104.32/148,445.10 = 105,112.80/x
  3. Step 3: Cross multiply
    107,104.32x = 148,445.10 × 105,112.80
  4. Step 4: Simplify right side
    107,104.32x = 15,603,480,107.28
  5. Step 5: Solve for x
    x = 15,603,480,107.28/107,104.32
  6. Step 6: Final answer
    x = 145,684.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.