Home / 136,141.09-187,847.13-79,541.53

Finding the Fourth Proportional to 136,141.09, 187,847.13 and 79,541.53

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Solution

The fourth proportional to 136,141.09, 187,847.13 and 79,541.53 is: 109,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,141.09 : 187,847.13 = 79,541.53 : x
  2. Step 2: Convert to fraction form
    136,141.09/187,847.13 = 79,541.53/x
  3. Step 3: Cross multiply
    136,141.09x = 187,847.13 × 79,541.53
  4. Step 4: Simplify right side
    136,141.09x = 14,941,648,126.31
  5. Step 5: Solve for x
    x = 14,941,648,126.31/136,141.09
  6. Step 6: Final answer
    x = 109,751.20

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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.