Home / 112,138.64-154,752.48-61,839.44

Finding the Fourth Proportional to 112,138.64, 154,752.48 and 61,839.44

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Solution

The fourth proportional to 112,138.64, 154,752.48 and 61,839.44 is: 85,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,138.64 : 154,752.48 = 61,839.44 : x
  2. Step 2: Convert to fraction form
    112,138.64/154,752.48 = 61,839.44/x
  3. Step 3: Cross multiply
    112,138.64x = 154,752.48 × 61,839.44
  4. Step 4: Simplify right side
    112,138.64x = 9,569,806,701.81
  5. Step 5: Solve for x
    x = 9,569,806,701.81/112,138.64
  6. Step 6: Final answer
    x = 85,339.07

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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.