Home / 124,013.67-171,175.29-80,999.75

Finding the Fourth Proportional to 124,013.67, 171,175.29 and 80,999.75

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Solution

The fourth proportional to 124,013.67, 171,175.29 and 80,999.75 is: 111,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,013.67 : 171,175.29 = 80,999.75 : x
  2. Step 2: Convert to fraction form
    124,013.67/171,175.29 = 80,999.75/x
  3. Step 3: Cross multiply
    124,013.67x = 171,175.29 × 80,999.75
  4. Step 4: Simplify right side
    124,013.67x = 13,865,154,840.30
  5. Step 5: Solve for x
    x = 13,865,154,840.30/124,013.67
  6. Step 6: Final answer
    x = 111,803.44

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1.5x scale

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.