Home / 147,790.80-203,952.52-84,132.72

Finding the Fourth Proportional to 147,790.80, 203,952.52 and 84,132.72

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Solution

The fourth proportional to 147,790.80, 203,952.52 and 84,132.72 is: 116,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,790.80 : 203,952.52 = 84,132.72 : x
  2. Step 2: Convert to fraction form
    147,790.80/203,952.52 = 84,132.72/x
  3. Step 3: Cross multiply
    147,790.80x = 203,952.52 × 84,132.72
  4. Step 4: Simplify right side
    147,790.80x = 17,159,080,258.45
  5. Step 5: Solve for x
    x = 17,159,080,258.45/147,790.80
  6. Step 6: Final answer
    x = 116,103.85

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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.