Home / 147,428.56-203,450.70-83,761.48

Finding the Fourth Proportional to 147,428.56, 203,450.70 and 83,761.48

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Solution

The fourth proportional to 147,428.56, 203,450.70 and 83,761.48 is: 115,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,428.56 : 203,450.70 = 83,761.48 : x
  2. Step 2: Convert to fraction form
    147,428.56/203,450.70 = 83,761.48/x
  3. Step 3: Cross multiply
    147,428.56x = 203,450.70 × 83,761.48
  4. Step 4: Simplify right side
    147,428.56x = 17,041,331,739.04
  5. Step 5: Solve for x
    x = 17,041,331,739.04/147,428.56
  6. Step 6: Final answer
    x = 115,590.44

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1.5x scale

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.