Home / 145,852.20-218,778.30-130,105.80

Finding the Fourth Proportional to 145,852.20, 218,778.30 and 130,105.80

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Solution

The fourth proportional to 145,852.20, 218,778.30 and 130,105.80 is: 195,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,852.20 : 218,778.30 = 130,105.80 : x
  2. Step 2: Convert to fraction form
    145,852.20/218,778.30 = 130,105.80/x
  3. Step 3: Cross multiply
    145,852.20x = 218,778.30 × 130,105.80
  4. Step 4: Simplify right side
    145,852.20x = 28,464,325,744.14
  5. Step 5: Solve for x
    x = 28,464,325,744.14/145,852.20
  6. Step 6: Final answer
    x = 195,158.70

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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.