Home / 135,204.58-186,581.22-74,777.76

Finding the Fourth Proportional to 135,204.58, 186,581.22 and 74,777.76

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Solution

The fourth proportional to 135,204.58, 186,581.22 and 74,777.76 is: 103,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,204.58 : 186,581.22 = 74,777.76 : x
  2. Step 2: Convert to fraction form
    135,204.58/186,581.22 = 74,777.76/x
  3. Step 3: Cross multiply
    135,204.58x = 186,581.22 × 74,777.76
  4. Step 4: Simplify right side
    135,204.58x = 13,952,125,689.67
  5. Step 5: Solve for x
    x = 13,952,125,689.67/135,204.58
  6. Step 6: Final answer
    x = 103,192.70

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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.