Home / 135,579.64-187,106.16-75,151.58

Finding the Fourth Proportional to 135,579.64, 187,106.16 and 75,151.58

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Solution

The fourth proportional to 135,579.64, 187,106.16 and 75,151.58 is: 103,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,579.64 : 187,106.16 = 75,151.58 : x
  2. Step 2: Convert to fraction form
    135,579.64/187,106.16 = 75,151.58/x
  3. Step 3: Cross multiply
    135,579.64x = 187,106.16 × 75,151.58
  4. Step 4: Simplify right side
    135,579.64x = 14,061,323,551.73
  5. Step 5: Solve for x
    x = 14,061,323,551.73/135,579.64
  6. Step 6: Final answer
    x = 103,712.65

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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.