Home / 132,349.28-198,507.50-78,346.09

Finding the Fourth Proportional to 132,349.28, 198,507.50 and 78,346.09

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Solution

The fourth proportional to 132,349.28, 198,507.50 and 78,346.09 is: 117,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,349.28 : 198,507.50 = 78,346.09 : x
  2. Step 2: Convert to fraction form
    132,349.28/198,507.50 = 78,346.09/x
  3. Step 3: Cross multiply
    132,349.28x = 198,507.50 × 78,346.09
  4. Step 4: Simplify right side
    132,349.28x = 15,552,286,460.68
  5. Step 5: Solve for x
    x = 15,552,286,460.68/132,349.28
  6. Step 6: Final answer
    x = 117,509.41

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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.