Home / 130,022.40-195,148.80-66,887.04

Finding the Fourth Proportional to 130,022.40, 195,148.80 and 66,887.04

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Solution

The fourth proportional to 130,022.40, 195,148.80 and 66,887.04 is: 100,389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,022.40 : 195,148.80 = 66,887.04 : x
  2. Step 2: Convert to fraction form
    130,022.40/195,148.80 = 66,887.04/x
  3. Step 3: Cross multiply
    130,022.40x = 195,148.80 × 66,887.04
  4. Step 4: Simplify right side
    130,022.40x = 13,052,925,591.55
  5. Step 5: Solve for x
    x = 13,052,925,591.55/130,022.40
  6. Step 6: Final answer
    x = 100,389.82

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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.