Home / 136,117.86-187,843.85-74,865.26

Finding the Fourth Proportional to 136,117.86, 187,843.85 and 74,865.26

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Solution

The fourth proportional to 136,117.86, 187,843.85 and 74,865.26 is: 103,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.86 : 187,843.85 = 74,865.26 : x
  2. Step 2: Convert to fraction form
    136,117.86/187,843.85 = 74,865.26/x
  3. Step 3: Cross multiply
    136,117.86x = 187,843.85 × 74,865.26
  4. Step 4: Simplify right side
    136,117.86x = 14,062,977,356.11
  5. Step 5: Solve for x
    x = 14,062,977,356.11/136,117.86
  6. Step 6: Final answer
    x = 103,314.71

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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.