Home / 132,885.12-199,400.58-53,978.16

Finding the Fourth Proportional to 132,885.12, 199,400.58 and 53,978.16

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Solution

The fourth proportional to 132,885.12, 199,400.58 and 53,978.16 is: 80,996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,885.12 : 199,400.58 = 53,978.16 : x
  2. Step 2: Convert to fraction form
    132,885.12/199,400.58 = 53,978.16/x
  3. Step 3: Cross multiply
    132,885.12x = 199,400.58 × 53,978.16
  4. Step 4: Simplify right side
    132,885.12x = 10,763,276,411.33
  5. Step 5: Solve for x
    x = 10,763,276,411.33/132,885.12
  6. Step 6: Final answer
    x = 80,996.85

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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.