Home / 157,438.20-236,157.30-39,108.60

Finding the Fourth Proportional to 157,438.20, 236,157.30 and 39,108.60

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Solution

The fourth proportional to 157,438.20, 236,157.30 and 39,108.60 is: 58,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,438.20 : 236,157.30 = 39,108.60 : x
  2. Step 2: Convert to fraction form
    157,438.20/236,157.30 = 39,108.60/x
  3. Step 3: Cross multiply
    157,438.20x = 236,157.30 × 39,108.60
  4. Step 4: Simplify right side
    157,438.20x = 9,235,781,382.78
  5. Step 5: Solve for x
    x = 9,235,781,382.78/157,438.20
  6. Step 6: Final answer
    x = 58,662.90

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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.