Home / 149,062.16-205,701.60-81,994.16

Finding the Fourth Proportional to 149,062.16, 205,701.60 and 81,994.16

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Solution

The fourth proportional to 149,062.16, 205,701.60 and 81,994.16 is: 113,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,062.16 : 205,701.60 = 81,994.16 : x
  2. Step 2: Convert to fraction form
    149,062.16/205,701.60 = 81,994.16/x
  3. Step 3: Cross multiply
    149,062.16x = 205,701.60 × 81,994.16
  4. Step 4: Simplify right side
    149,062.16x = 16,866,329,902.66
  5. Step 5: Solve for x
    x = 16,866,329,902.66/149,062.16
  6. Step 6: Final answer
    x = 113,149.64

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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.