Home / 130,705.80-196,123.56-51,818.28

Finding the Fourth Proportional to 130,705.80, 196,123.56 and 51,818.28

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Solution

The fourth proportional to 130,705.80, 196,123.56 and 51,818.28 is: 77,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,705.80 : 196,123.56 = 51,818.28 : x
  2. Step 2: Convert to fraction form
    130,705.80/196,123.56 = 51,818.28/x
  3. Step 3: Cross multiply
    130,705.80x = 196,123.56 × 51,818.28
  4. Step 4: Simplify right side
    130,705.80x = 10,162,785,546.68
  5. Step 5: Solve for x
    x = 10,162,785,546.68/130,705.80
  6. Step 6: Final answer
    x = 77,753.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.