Home / 138,659.45-191,173.87-93,240.92

Finding the Fourth Proportional to 138,659.45, 191,173.87 and 93,240.92

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Solution

The fourth proportional to 138,659.45, 191,173.87 and 93,240.92 is: 128,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,659.45 : 191,173.87 = 93,240.92 : x
  2. Step 2: Convert to fraction form
    138,659.45/191,173.87 = 93,240.92/x
  3. Step 3: Cross multiply
    138,659.45x = 191,173.87 × 93,240.92
  4. Step 4: Simplify right side
    138,659.45x = 17,825,228,113.25
  5. Step 5: Solve for x
    x = 17,825,228,113.25/138,659.45
  6. Step 6: Final answer
    x = 128,554.01

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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.