Home / 130,128.40-195,192.60-63,611.20

Finding the Fourth Proportional to 130,128.40, 195,192.60 and 63,611.20

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Solution

The fourth proportional to 130,128.40, 195,192.60 and 63,611.20 is: 95,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,128.40 : 195,192.60 = 63,611.20 : x
  2. Step 2: Convert to fraction form
    130,128.40/195,192.60 = 63,611.20/x
  3. Step 3: Cross multiply
    130,128.40x = 195,192.60 × 63,611.20
  4. Step 4: Simplify right side
    130,128.40x = 12,416,435,517.12
  5. Step 5: Solve for x
    x = 12,416,435,517.12/130,128.40
  6. Step 6: Final answer
    x = 95,416.80

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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.