Home / 136,315.44-204,307.38-72,979.92

Finding the Fourth Proportional to 136,315.44, 204,307.38 and 72,979.92

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Solution

The fourth proportional to 136,315.44, 204,307.38 and 72,979.92 is: 109,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,315.44 : 204,307.38 = 72,979.92 : x
  2. Step 2: Convert to fraction form
    136,315.44/204,307.38 = 72,979.92/x
  3. Step 3: Cross multiply
    136,315.44x = 204,307.38 × 72,979.92
  4. Step 4: Simplify right side
    136,315.44x = 14,910,336,247.81
  5. Step 5: Solve for x
    x = 14,910,336,247.81/136,315.44
  6. Step 6: Final answer
    x = 109,381.13

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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.