Home / 138,766.41-191,497.59-75,104.19

Finding the Fourth Proportional to 138,766.41, 191,497.59 and 75,104.19

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Solution

The fourth proportional to 138,766.41, 191,497.59 and 75,104.19 is: 103,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,766.41 : 191,497.59 = 75,104.19 : x
  2. Step 2: Convert to fraction form
    138,766.41/191,497.59 = 75,104.19/x
  3. Step 3: Cross multiply
    138,766.41x = 191,497.59 × 75,104.19
  4. Step 4: Simplify right side
    138,766.41x = 14,382,271,383.90
  5. Step 5: Solve for x
    x = 14,382,271,383.90/138,766.41
  6. Step 6: Final answer
    x = 103,643.75

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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.