Home / 136,089.24-203,857.38-70,287

Finding the Fourth Proportional to 136,089.24, 203,857.38 and 70,287

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Solution

The fourth proportional to 136,089.24, 203,857.38 and 70,287 is: 105,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,089.24 : 203,857.38 = 70,287 : x
  2. Step 2: Convert to fraction form
    136,089.24/203,857.38 = 70,287/x
  3. Step 3: Cross multiply
    136,089.24x = 203,857.38 × 70,287
  4. Step 4: Simplify right side
    136,089.24x = 14,328,523,668.06
  5. Step 5: Solve for x
    x = 14,328,523,668.06/136,089.24
  6. Step 6: Final answer
    x = 105,287.70

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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.