Home / 130,118.40-194,594.40-109,123.20

Finding the Fourth Proportional to 130,118.40, 194,594.40 and 109,123.20

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Solution

The fourth proportional to 130,118.40, 194,594.40 and 109,123.20 is: 163,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,118.40 : 194,594.40 = 109,123.20 : x
  2. Step 2: Convert to fraction form
    130,118.40/194,594.40 = 109,123.20/x
  3. Step 3: Cross multiply
    130,118.40x = 194,594.40 × 109,123.20
  4. Step 4: Simplify right side
    130,118.40x = 21,234,763,630.08
  5. Step 5: Solve for x
    x = 21,234,763,630.08/130,118.40
  6. Step 6: Final answer
    x = 163,195.70

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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.