Home / 130,243.20-195,364.80-67,257.60

Finding the Fourth Proportional to 130,243.20, 195,364.80 and 67,257.60

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Solution

The fourth proportional to 130,243.20, 195,364.80 and 67,257.60 is: 100,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,243.20 : 195,364.80 = 67,257.60 : x
  2. Step 2: Convert to fraction form
    130,243.20/195,364.80 = 67,257.60/x
  3. Step 3: Cross multiply
    130,243.20x = 195,364.80 × 67,257.60
  4. Step 4: Simplify right side
    130,243.20x = 13,139,767,572.48
  5. Step 5: Solve for x
    x = 13,139,767,572.48/130,243.20
  6. Step 6: Final answer
    x = 100,886.40

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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.