Home / 127,337.80-190,617.90-99,344.20

Finding the Fourth Proportional to 127,337.80, 190,617.90 and 99,344.20

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Solution

The fourth proportional to 127,337.80, 190,617.90 and 99,344.20 is: 148,712.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,337.80 : 190,617.90 = 99,344.20 : x
  2. Step 2: Convert to fraction form
    127,337.80/190,617.90 = 99,344.20/x
  3. Step 3: Cross multiply
    127,337.80x = 190,617.90 × 99,344.20
  4. Step 4: Simplify right side
    127,337.80x = 18,936,782,781.18
  5. Step 5: Solve for x
    x = 18,936,782,781.18/127,337.80
  6. Step 6: Final answer
    x = 148,712.97

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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.