Home / 156,799.40-235,101.90-90,206.60

Finding the Fourth Proportional to 156,799.40, 235,101.90 and 90,206.60

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Solution

The fourth proportional to 156,799.40, 235,101.90 and 90,206.60 is: 135,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.40 : 235,101.90 = 90,206.60 : x
  2. Step 2: Convert to fraction form
    156,799.40/235,101.90 = 90,206.60/x
  3. Step 3: Cross multiply
    156,799.40x = 235,101.90 × 90,206.60
  4. Step 4: Simplify right side
    156,799.40x = 21,207,743,052.54
  5. Step 5: Solve for x
    x = 21,207,743,052.54/156,799.40
  6. Step 6: Final answer
    x = 135,253.98

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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.