Home / 112,719.60-155,548.92-64,974.96

Finding the Fourth Proportional to 112,719.60, 155,548.92 and 64,974.96

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Solution

The fourth proportional to 112,719.60, 155,548.92 and 64,974.96 is: 89,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,719.60 : 155,548.92 = 64,974.96 : x
  2. Step 2: Convert to fraction form
    112,719.60/155,548.92 = 64,974.96/x
  3. Step 3: Cross multiply
    112,719.60x = 155,548.92 × 64,974.96
  4. Step 4: Simplify right side
    112,719.60x = 10,106,784,855.04
  5. Step 5: Solve for x
    x = 10,106,784,855.04/112,719.60
  6. Step 6: Final answer
    x = 89,663.07

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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.