Home / 127,338.30-190,618.65-99,344.70

Finding the Fourth Proportional to 127,338.30, 190,618.65 and 99,344.70

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Solution

The fourth proportional to 127,338.30, 190,618.65 and 99,344.70 is: 148,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.30 : 190,618.65 = 99,344.70 : x
  2. Step 2: Convert to fraction form
    127,338.30/190,618.65 = 99,344.70/x
  3. Step 3: Cross multiply
    127,338.30x = 190,618.65 × 99,344.70
  4. Step 4: Simplify right side
    127,338.30x = 18,936,952,598.66
  5. Step 5: Solve for x
    x = 18,936,952,598.66/127,338.30
  6. Step 6: Final answer
    x = 148,713.72

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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.