Home / 157,087.80-235,113.30-121,836.60

Finding the Fourth Proportional to 157,087.80, 235,113.30 and 121,836.60

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Solution

The fourth proportional to 157,087.80, 235,113.30 and 121,836.60 is: 182,352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,087.80 : 235,113.30 = 121,836.60 : x
  2. Step 2: Convert to fraction form
    157,087.80/235,113.30 = 121,836.60/x
  3. Step 3: Cross multiply
    157,087.80x = 235,113.30 × 121,836.60
  4. Step 4: Simplify right side
    157,087.80x = 28,645,405,086.78
  5. Step 5: Solve for x
    x = 28,645,405,086.78/157,087.80
  6. Step 6: Final answer
    x = 182,352.83

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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.