Home / 112,239.70-154,894.06-61,255.72

Finding the Fourth Proportional to 112,239.70, 154,894.06 and 61,255.72

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Solution

The fourth proportional to 112,239.70, 154,894.06 and 61,255.72 is: 84,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,239.70 : 154,894.06 = 61,255.72 : x
  2. Step 2: Convert to fraction form
    112,239.70/154,894.06 = 61,255.72/x
  3. Step 3: Cross multiply
    112,239.70x = 154,894.06 × 61,255.72
  4. Step 4: Simplify right side
    112,239.70x = 9,488,147,169.02
  5. Step 5: Solve for x
    x = 9,488,147,169.02/112,239.70
  6. Step 6: Final answer
    x = 84,534.68

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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.