Home / 130,170.60-194,802.30-77,617.80

Finding the Fourth Proportional to 130,170.60, 194,802.30 and 77,617.80

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Solution

The fourth proportional to 130,170.60, 194,802.30 and 77,617.80 is: 116,156.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170.60 : 194,802.30 = 77,617.80 : x
  2. Step 2: Convert to fraction form
    130,170.60/194,802.30 = 77,617.80/x
  3. Step 3: Cross multiply
    130,170.60x = 194,802.30 × 77,617.80
  4. Step 4: Simplify right side
    130,170.60x = 15,120,125,960.94
  5. Step 5: Solve for x
    x = 15,120,125,960.94/130,170.60
  6. Step 6: Final answer
    x = 116,156.23

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1.5x scale

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.