Home / 134,568.60-201,609.90-78,362.70

Finding the Fourth Proportional to 134,568.60, 201,609.90 and 78,362.70

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Solution

The fourth proportional to 134,568.60, 201,609.90 and 78,362.70 is: 117,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,568.60 : 201,609.90 = 78,362.70 : x
  2. Step 2: Convert to fraction form
    134,568.60/201,609.90 = 78,362.70/x
  3. Step 3: Cross multiply
    134,568.60x = 201,609.90 × 78,362.70
  4. Step 4: Simplify right side
    134,568.60x = 15,798,696,110.73
  5. Step 5: Solve for x
    x = 15,798,696,110.73/134,568.60
  6. Step 6: Final answer
    x = 117,402.54

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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.