Home / 127,220.28-191,655.47-121,031.16

Finding the Fourth Proportional to 127,220.28, 191,655.47 and 121,031.16

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Solution

The fourth proportional to 127,220.28, 191,655.47 and 121,031.16 is: 182,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,220.28 : 191,655.47 = 121,031.16 : x
  2. Step 2: Convert to fraction form
    127,220.28/191,655.47 = 121,031.16/x
  3. Step 3: Cross multiply
    127,220.28x = 191,655.47 × 121,031.16
  4. Step 4: Simplify right side
    127,220.28x = 23,196,283,249.29
  5. Step 5: Solve for x
    x = 23,196,283,249.29/127,220.28
  6. Step 6: Final answer
    x = 182,331.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.