Home / 130,006.40-194,995.20-36,521.60

Finding the Fourth Proportional to 130,006.40, 194,995.20 and 36,521.60

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Solution

The fourth proportional to 130,006.40, 194,995.20 and 36,521.60 is: 54,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,006.40 : 194,995.20 = 36,521.60 : x
  2. Step 2: Convert to fraction form
    130,006.40/194,995.20 = 36,521.60/x
  3. Step 3: Cross multiply
    130,006.40x = 194,995.20 × 36,521.60
  4. Step 4: Simplify right side
    130,006.40x = 7,121,536,696.32
  5. Step 5: Solve for x
    x = 7,121,536,696.32/130,006.40
  6. Step 6: Final answer
    x = 54,778.35

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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.