Home / 127,251.40-190,877.10-103,631.80

Finding the Fourth Proportional to 127,251.40, 190,877.10 and 103,631.80

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Solution

The fourth proportional to 127,251.40, 190,877.10 and 103,631.80 is: 155,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,251.40 : 190,877.10 = 103,631.80 : x
  2. Step 2: Convert to fraction form
    127,251.40/190,877.10 = 103,631.80/x
  3. Step 3: Cross multiply
    127,251.40x = 190,877.10 × 103,631.80
  4. Step 4: Simplify right side
    127,251.40x = 19,780,937,451.78
  5. Step 5: Solve for x
    x = 19,780,937,451.78/127,251.40
  6. Step 6: Final answer
    x = 155,447.70

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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.