Home / 113,326.40-170,015.20-66,555.20

Finding the Fourth Proportional to 113,326.40, 170,015.20 and 66,555.20

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Solution

The fourth proportional to 113,326.40, 170,015.20 and 66,555.20 is: 99,847.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,326.40 : 170,015.20 = 66,555.20 : x
  2. Step 2: Convert to fraction form
    113,326.40/170,015.20 = 66,555.20/x
  3. Step 3: Cross multiply
    113,326.40x = 170,015.20 × 66,555.20
  4. Step 4: Simplify right side
    113,326.40x = 11,315,395,639.04
  5. Step 5: Solve for x
    x = 11,315,395,639.04/113,326.40
  6. Step 6: Final answer
    x = 99,847.83

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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.