Home / 136,076.28-187,790.09-74,827.14

Finding the Fourth Proportional to 136,076.28, 187,790.09 and 74,827.14

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Solution

The fourth proportional to 136,076.28, 187,790.09 and 74,827.14 is: 103,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,076.28 : 187,790.09 = 74,827.14 : x
  2. Step 2: Convert to fraction form
    136,076.28/187,790.09 = 74,827.14/x
  3. Step 3: Cross multiply
    136,076.28x = 187,790.09 × 74,827.14
  4. Step 4: Simplify right side
    136,076.28x = 14,051,794,980.91
  5. Step 5: Solve for x
    x = 14,051,794,980.91/136,076.28
  6. Step 6: Final answer
    x = 103,264.10

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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.