Home / 136,230.64-204,345.78-42,743.68

Finding the Fourth Proportional to 136,230.64, 204,345.78 and 42,743.68

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Solution

The fourth proportional to 136,230.64, 204,345.78 and 42,743.68 is: 64,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,230.64 : 204,345.78 = 42,743.68 : x
  2. Step 2: Convert to fraction form
    136,230.64/204,345.78 = 42,743.68/x
  3. Step 3: Cross multiply
    136,230.64x = 204,345.78 × 42,743.68
  4. Step 4: Simplify right side
    136,230.64x = 8,734,490,629.67
  5. Step 5: Solve for x
    x = 8,734,490,629.67/136,230.64
  6. Step 6: Final answer
    x = 64,115.46

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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.