Home / 147,471.67-203,528.21-83,819.03

Finding the Fourth Proportional to 147,471.67, 203,528.21 and 83,819.03

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Solution

The fourth proportional to 147,471.67, 203,528.21 and 83,819.03 is: 115,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,471.67 : 203,528.21 = 83,819.03 : x
  2. Step 2: Convert to fraction form
    147,471.67/203,528.21 = 83,819.03/x
  3. Step 3: Cross multiply
    147,471.67x = 203,528.21 × 83,819.03
  4. Step 4: Simplify right side
    147,471.67x = 17,059,537,139.84
  5. Step 5: Solve for x
    x = 17,059,537,139.84/147,471.67
  6. Step 6: Final answer
    x = 115,680.10

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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.