Home / 136,801.60-205,183.20-43,316.80

Finding the Fourth Proportional to 136,801.60, 205,183.20 and 43,316.80

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Solution

The fourth proportional to 136,801.60, 205,183.20 and 43,316.80 is: 64,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,801.60 : 205,183.20 = 43,316.80 : x
  2. Step 2: Convert to fraction form
    136,801.60/205,183.20 = 43,316.80/x
  3. Step 3: Cross multiply
    136,801.60x = 205,183.20 × 43,316.80
  4. Step 4: Simplify right side
    136,801.60x = 8,887,879,637.76
  5. Step 5: Solve for x
    x = 8,887,879,637.76/136,801.60
  6. Step 6: Final answer
    x = 64,969.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.