Home / 122,482.32-169,012.56-68,773.20

Finding the Fourth Proportional to 122,482.32, 169,012.56 and 68,773.20

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Solution

The fourth proportional to 122,482.32, 169,012.56 and 68,773.20 is: 94,899.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,482.32 : 169,012.56 = 68,773.20 : x
  2. Step 2: Convert to fraction form
    122,482.32/169,012.56 = 68,773.20/x
  3. Step 3: Cross multiply
    122,482.32x = 169,012.56 × 68,773.20
  4. Step 4: Simplify right side
    122,482.32x = 11,623,534,591.39
  5. Step 5: Solve for x
    x = 11,623,534,591.39/122,482.32
  6. Step 6: Final answer
    x = 94,899.69

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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.