Home / 138,708.56-191,364.36-96,245.84

Finding the Fourth Proportional to 138,708.56, 191,364.36 and 96,245.84

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Solution

The fourth proportional to 138,708.56, 191,364.36 and 96,245.84 is: 132,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,708.56 : 191,364.36 = 96,245.84 : x
  2. Step 2: Convert to fraction form
    138,708.56/191,364.36 = 96,245.84/x
  3. Step 3: Cross multiply
    138,708.56x = 191,364.36 × 96,245.84
  4. Step 4: Simplify right side
    138,708.56x = 18,418,023,574.26
  5. Step 5: Solve for x
    x = 18,418,023,574.26/138,708.56
  6. Step 6: Final answer
    x = 132,782.17

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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.