Home / 130,025.40-194,892.30-66,821.10

Finding the Fourth Proportional to 130,025.40, 194,892.30 and 66,821.10

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Solution

The fourth proportional to 130,025.40, 194,892.30 and 66,821.10 is: 100,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,025.40 : 194,892.30 = 66,821.10 : x
  2. Step 2: Convert to fraction form
    130,025.40/194,892.30 = 66,821.10/x
  3. Step 3: Cross multiply
    130,025.40x = 194,892.30 × 66,821.10
  4. Step 4: Simplify right side
    130,025.40x = 13,022,917,867.53
  5. Step 5: Solve for x
    x = 13,022,917,867.53/130,025.40
  6. Step 6: Final answer
    x = 100,156.72

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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.