Home / 113,844.20-157,244.49-85,291.55

Finding the Fourth Proportional to 113,844.20, 157,244.49 and 85,291.55

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Solution

The fourth proportional to 113,844.20, 157,244.49 and 85,291.55 is: 117,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,844.20 : 157,244.49 = 85,291.55 : x
  2. Step 2: Convert to fraction form
    113,844.20/157,244.49 = 85,291.55/x
  3. Step 3: Cross multiply
    113,844.20x = 157,244.49 × 85,291.55
  4. Step 4: Simplify right side
    113,844.20x = 13,411,626,494.29
  5. Step 5: Solve for x
    x = 13,411,626,494.29/113,844.20
  6. Step 6: Final answer
    x = 117,806.85

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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.