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Finding the Fourth Proportional to 132,950.40, 199,555.20 and 66,465.60

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Solution

The fourth proportional to 132,950.40, 199,555.20 and 66,465.60 is: 99,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,950.40 : 199,555.20 = 66,465.60 : x
  2. Step 2: Convert to fraction form
    132,950.40/199,555.20 = 66,465.60/x
  3. Step 3: Cross multiply
    132,950.40x = 199,555.20 × 66,465.60
  4. Step 4: Simplify right side
    132,950.40x = 13,263,556,101.12
  5. Step 5: Solve for x
    x = 13,263,556,101.12/132,950.40
  6. Step 6: Final answer
    x = 99,763.19

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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.