Home / 147,713.28-203,865.84-84,066.72

Finding the Fourth Proportional to 147,713.28, 203,865.84 and 84,066.72

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Solution

The fourth proportional to 147,713.28, 203,865.84 and 84,066.72 is: 116,024.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,713.28 : 203,865.84 = 84,066.72 : x
  2. Step 2: Convert to fraction form
    147,713.28/203,865.84 = 84,066.72/x
  3. Step 3: Cross multiply
    147,713.28x = 203,865.84 × 84,066.72
  4. Step 4: Simplify right side
    147,713.28x = 17,138,332,488.84
  5. Step 5: Solve for x
    x = 17,138,332,488.84/147,713.28
  6. Step 6: Final answer
    x = 116,024.32

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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.