Home / 127,221.28-191,656.97-121,032.16

Finding the Fourth Proportional to 127,221.28, 191,656.97 and 121,032.16

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Solution

The fourth proportional to 127,221.28, 191,656.97 and 121,032.16 is: 182,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,221.28 : 191,656.97 = 121,032.16 : x
  2. Step 2: Convert to fraction form
    127,221.28/191,656.97 = 121,032.16/x
  3. Step 3: Cross multiply
    127,221.28x = 191,656.97 × 121,032.16
  4. Step 4: Simplify right side
    127,221.28x = 23,196,657,058.16
  5. Step 5: Solve for x
    x = 23,196,657,058.16/127,221.28
  6. Step 6: Final answer
    x = 182,333.15

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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.