Home / 147,788.13-203,735.05-105,272.85

Finding the Fourth Proportional to 147,788.13, 203,735.05 and 105,272.85

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Solution

The fourth proportional to 147,788.13, 203,735.05 and 105,272.85 is: 145,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,788.13 : 203,735.05 = 105,272.85 : x
  2. Step 2: Convert to fraction form
    147,788.13/203,735.05 = 105,272.85/x
  3. Step 3: Cross multiply
    147,788.13x = 203,735.05 × 105,272.85
  4. Step 4: Simplify right side
    147,788.13x = 21,447,769,358.39
  5. Step 5: Solve for x
    x = 21,447,769,358.39/147,788.13
  6. Step 6: Final answer
    x = 145,125.11

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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.