Home / 113,883.14-157,167.60-83,806.76

Finding the Fourth Proportional to 113,883.14, 157,167.60 and 83,806.76

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Solution

The fourth proportional to 113,883.14, 157,167.60 and 83,806.76 is: 115,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,883.14 : 157,167.60 = 83,806.76 : x
  2. Step 2: Convert to fraction form
    113,883.14/157,167.60 = 83,806.76/x
  3. Step 3: Cross multiply
    113,883.14x = 157,167.60 × 83,806.76
  4. Step 4: Simplify right side
    113,883.14x = 13,171,707,332.98
  5. Step 5: Solve for x
    x = 13,171,707,332.98/113,883.14
  6. Step 6: Final answer
    x = 115,659.85

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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.