Home / 113,863.11-157,119.15-66,107.13

Finding the Fourth Proportional to 113,863.11, 157,119.15 and 66,107.13

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Solution

The fourth proportional to 113,863.11, 157,119.15 and 66,107.13 is: 91,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,863.11 : 157,119.15 = 66,107.13 : x
  2. Step 2: Convert to fraction form
    113,863.11/157,119.15 = 66,107.13/x
  3. Step 3: Cross multiply
    113,863.11x = 157,119.15 × 66,107.13
  4. Step 4: Simplify right side
    113,863.11x = 10,386,696,074.54
  5. Step 5: Solve for x
    x = 10,386,696,074.54/113,863.11
  6. Step 6: Final answer
    x = 91,220.91

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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.