Home / 127,163.49-190,747.05-38,417.76

Finding the Fourth Proportional to 127,163.49, 190,747.05 and 38,417.76

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Solution

The fourth proportional to 127,163.49, 190,747.05 and 38,417.76 is: 57,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,163.49 : 190,747.05 = 38,417.76 : x
  2. Step 2: Convert to fraction form
    127,163.49/190,747.05 = 38,417.76/x
  3. Step 3: Cross multiply
    127,163.49x = 190,747.05 × 38,417.76
  4. Step 4: Simplify right side
    127,163.49x = 7,328,074,387.61
  5. Step 5: Solve for x
    x = 7,328,074,387.61/127,163.49
  6. Step 6: Final answer
    x = 57,627.19

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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.