Home / 130,176.60-194,811.30-77,623.80

Finding the Fourth Proportional to 130,176.60, 194,811.30 and 77,623.80

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Solution

The fourth proportional to 130,176.60, 194,811.30 and 77,623.80 is: 116,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,176.60 : 194,811.30 = 77,623.80 : x
  2. Step 2: Convert to fraction form
    130,176.60/194,811.30 = 77,623.80/x
  3. Step 3: Cross multiply
    130,176.60x = 194,811.30 × 77,623.80
  4. Step 4: Simplify right side
    130,176.60x = 15,121,993,388.94
  5. Step 5: Solve for x
    x = 15,121,993,388.94/130,176.60
  6. Step 6: Final answer
    x = 116,165.22

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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.