Home / 132,054.40-198,107.20-66,390.40

Finding the Fourth Proportional to 132,054.40, 198,107.20 and 66,390.40

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Solution

The fourth proportional to 132,054.40, 198,107.20 and 66,390.40 is: 99,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,054.40 : 198,107.20 = 66,390.40 : x
  2. Step 2: Convert to fraction form
    132,054.40/198,107.20 = 66,390.40/x
  3. Step 3: Cross multiply
    132,054.40x = 198,107.20 × 66,390.40
  4. Step 4: Simplify right side
    132,054.40x = 13,152,416,250.88
  5. Step 5: Solve for x
    x = 13,152,416,250.88/132,054.40
  6. Step 6: Final answer
    x = 99,598.47

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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.