Home / 138,937.44-191,663.76-91,184.16

Finding the Fourth Proportional to 138,937.44, 191,663.76 and 91,184.16

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Solution

The fourth proportional to 138,937.44, 191,663.76 and 91,184.16 is: 125,788.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,937.44 : 191,663.76 = 91,184.16 : x
  2. Step 2: Convert to fraction form
    138,937.44/191,663.76 = 91,184.16/x
  3. Step 3: Cross multiply
    138,937.44x = 191,663.76 × 91,184.16
  4. Step 4: Simplify right side
    138,937.44x = 17,476,698,958.04
  5. Step 5: Solve for x
    x = 17,476,698,958.04/138,937.44
  6. Step 6: Final answer
    x = 125,788.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.