Home / 113,941.14-157,211.97-66,165.78

Finding the Fourth Proportional to 113,941.14, 157,211.97 and 66,165.78

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Solution

The fourth proportional to 113,941.14, 157,211.97 and 66,165.78 is: 91,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,941.14 : 157,211.97 = 66,165.78 : x
  2. Step 2: Convert to fraction form
    113,941.14/157,211.97 = 66,165.78/x
  3. Step 3: Cross multiply
    113,941.14x = 157,211.97 × 66,165.78
  4. Step 4: Simplify right side
    113,941.14x = 10,402,052,620.39
  5. Step 5: Solve for x
    x = 10,402,052,620.39/113,941.14
  6. Step 6: Final answer
    x = 91,293.21

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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.