Home / 130,400.20-195,551.70-90,839.80

Finding the Fourth Proportional to 130,400.20, 195,551.70 and 90,839.80

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Solution

The fourth proportional to 130,400.20, 195,551.70 and 90,839.80 is: 136,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400.20 : 195,551.70 = 90,839.80 : x
  2. Step 2: Convert to fraction form
    130,400.20/195,551.70 = 90,839.80/x
  3. Step 3: Cross multiply
    130,400.20x = 195,551.70 × 90,839.80
  4. Step 4: Simplify right side
    130,400.20x = 17,763,877,317.66
  5. Step 5: Solve for x
    x = 17,763,877,317.66/130,400.20
  6. Step 6: Final answer
    x = 136,225.84

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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.