Home / 136,149.84-187,899.12-75,719.52

Finding the Fourth Proportional to 136,149.84, 187,899.12 and 75,719.52

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Solution

The fourth proportional to 136,149.84, 187,899.12 and 75,719.52 is: 104,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,149.84 : 187,899.12 = 75,719.52 : x
  2. Step 2: Convert to fraction form
    136,149.84/187,899.12 = 75,719.52/x
  3. Step 3: Cross multiply
    136,149.84x = 187,899.12 × 75,719.52
  4. Step 4: Simplify right side
    136,149.84x = 14,227,631,174.82
  5. Step 5: Solve for x
    x = 14,227,631,174.82/136,149.84
  6. Step 6: Final answer
    x = 104,499.80

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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.