Home / 130,400.40-195,730.20-63,915.60

Finding the Fourth Proportional to 130,400.40, 195,730.20 and 63,915.60

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Solution

The fourth proportional to 130,400.40, 195,730.20 and 63,915.60 is: 95,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400.40 : 195,730.20 = 63,915.60 : x
  2. Step 2: Convert to fraction form
    130,400.40/195,730.20 = 63,915.60/x
  3. Step 3: Cross multiply
    130,400.40x = 195,730.20 × 63,915.60
  4. Step 4: Simplify right side
    130,400.40x = 12,510,213,171.12
  5. Step 5: Solve for x
    x = 12,510,213,171.12/130,400.40
  6. Step 6: Final answer
    x = 95,936.92

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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.