Home / 113,860.85-157,116.03-66,104.87

Finding the Fourth Proportional to 113,860.85, 157,116.03 and 66,104.87

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Solution

The fourth proportional to 113,860.85, 157,116.03 and 66,104.87 is: 91,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,860.85 : 157,116.03 = 66,104.87 : x
  2. Step 2: Convert to fraction form
    113,860.85/157,116.03 = 66,104.87/x
  3. Step 3: Cross multiply
    113,860.85x = 157,116.03 × 66,104.87
  4. Step 4: Simplify right side
    113,860.85x = 10,386,133,952.49
  5. Step 5: Solve for x
    x = 10,386,133,952.49/113,860.85
  6. Step 6: Final answer
    x = 91,217.78

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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.