Home / 138,710.73-191,246.52-113,191.17

Finding the Fourth Proportional to 138,710.73, 191,246.52 and 113,191.17

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Solution

The fourth proportional to 138,710.73, 191,246.52 and 113,191.17 is: 156,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,710.73 : 191,246.52 = 113,191.17 : x
  2. Step 2: Convert to fraction form
    138,710.73/191,246.52 = 113,191.17/x
  3. Step 3: Cross multiply
    138,710.73x = 191,246.52 × 113,191.17
  4. Step 4: Simplify right side
    138,710.73x = 21,647,417,357.23
  5. Step 5: Solve for x
    x = 21,647,417,357.23/138,710.73
  6. Step 6: Final answer
    x = 156,061.59

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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.