Home / 112,864.93-155,755.36-61,882.31

Finding the Fourth Proportional to 112,864.93, 155,755.36 and 61,882.31

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Solution

The fourth proportional to 112,864.93, 155,755.36 and 61,882.31 is: 85,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,864.93 : 155,755.36 = 61,882.31 : x
  2. Step 2: Convert to fraction form
    112,864.93/155,755.36 = 61,882.31/x
  3. Step 3: Cross multiply
    112,864.93x = 155,755.36 × 61,882.31
  4. Step 4: Simplify right side
    112,864.93x = 9,638,501,590.33
  5. Step 5: Solve for x
    x = 9,638,501,590.33/112,864.93
  6. Step 6: Final answer
    x = 85,398.55

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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.