Home / 112,984.56-155,915.73-61,997.13

Finding the Fourth Proportional to 112,984.56, 155,915.73 and 61,997.13

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Solution

The fourth proportional to 112,984.56, 155,915.73 and 61,997.13 is: 85,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,984.56 : 155,915.73 = 61,997.13 : x
  2. Step 2: Convert to fraction form
    112,984.56/155,915.73 = 61,997.13/x
  3. Step 3: Cross multiply
    112,984.56x = 155,915.73 × 61,997.13
  4. Step 4: Simplify right side
    112,984.56x = 9,666,327,781.85
  5. Step 5: Solve for x
    x = 9,666,327,781.85/112,984.56
  6. Step 6: Final answer
    x = 85,554.41

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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.