Home / 112,531.68-155,296.44-61,549.20

Finding the Fourth Proportional to 112,531.68, 155,296.44 and 61,549.20

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Solution

The fourth proportional to 112,531.68, 155,296.44 and 61,549.20 is: 84,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,531.68 : 155,296.44 = 61,549.20 : x
  2. Step 2: Convert to fraction form
    112,531.68/155,296.44 = 61,549.20/x
  3. Step 3: Cross multiply
    112,531.68x = 155,296.44 × 61,549.20
  4. Step 4: Simplify right side
    112,531.68x = 9,558,371,644.85
  5. Step 5: Solve for x
    x = 9,558,371,644.85/112,531.68
  6. Step 6: Final answer
    x = 84,939.38

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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.