Home / 113,718.24-156,942.27-84,987.90

Finding the Fourth Proportional to 113,718.24, 156,942.27 and 84,987.90

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Solution

The fourth proportional to 113,718.24, 156,942.27 and 84,987.90 is: 117,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,718.24 : 156,942.27 = 84,987.90 : x
  2. Step 2: Convert to fraction form
    113,718.24/156,942.27 = 84,987.90/x
  3. Step 3: Cross multiply
    113,718.24x = 156,942.27 × 84,987.90
  4. Step 4: Simplify right side
    113,718.24x = 13,338,193,948.53
  5. Step 5: Solve for x
    x = 13,338,193,948.53/113,718.24
  6. Step 6: Final answer
    x = 117,291.60

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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.