Home / 199,428.12-275,196.60-112,225.92

Finding the Fourth Proportional to 199,428.12, 275,196.60 and 112,225.92

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Solution

The fourth proportional to 199,428.12, 275,196.60 and 112,225.92 is: 154,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,428.12 : 275,196.60 = 112,225.92 : x
  2. Step 2: Convert to fraction form
    199,428.12/275,196.60 = 112,225.92/x
  3. Step 3: Cross multiply
    199,428.12x = 275,196.60 × 112,225.92
  4. Step 4: Simplify right side
    199,428.12x = 30,884,191,615.87
  5. Step 5: Solve for x
    x = 30,884,191,615.87/199,428.12
  6. Step 6: Final answer
    x = 154,863.78

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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.