Home / 112,841.07-155,718.45-61,853.91

Finding the Fourth Proportional to 112,841.07, 155,718.45 and 61,853.91

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Solution

The fourth proportional to 112,841.07, 155,718.45 and 61,853.91 is: 85,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,841.07 : 155,718.45 = 61,853.91 : x
  2. Step 2: Convert to fraction form
    112,841.07/155,718.45 = 61,853.91/x
  3. Step 3: Cross multiply
    112,841.07x = 155,718.45 × 61,853.91
  4. Step 4: Simplify right side
    112,841.07x = 9,631,794,991.64
  5. Step 5: Solve for x
    x = 9,631,794,991.64/112,841.07
  6. Step 6: Final answer
    x = 85,357.18

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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.