Home / 122,839.07-169,610.30-120,877.29

Finding the Fourth Proportional to 122,839.07, 169,610.30 and 120,877.29

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Solution

The fourth proportional to 122,839.07, 169,610.30 and 120,877.29 is: 166,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,839.07 : 169,610.30 = 120,877.29 : x
  2. Step 2: Convert to fraction form
    122,839.07/169,610.30 = 120,877.29/x
  3. Step 3: Cross multiply
    122,839.07x = 169,610.30 × 120,877.29
  4. Step 4: Simplify right side
    122,839.07x = 20,502,033,905.03
  5. Step 5: Solve for x
    x = 20,502,033,905.03/122,839.07
  6. Step 6: Final answer
    x = 166,901.57

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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.