Home / 157,178.12-235,769.64-87,500.28

Finding the Fourth Proportional to 157,178.12, 235,769.64 and 87,500.28

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Solution

The fourth proportional to 157,178.12, 235,769.64 and 87,500.28 is: 131,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,178.12 : 235,769.64 = 87,500.28 : x
  2. Step 2: Convert to fraction form
    157,178.12/235,769.64 = 87,500.28/x
  3. Step 3: Cross multiply
    157,178.12x = 235,769.64 × 87,500.28
  4. Step 4: Simplify right side
    157,178.12x = 20,629,909,515.50
  5. Step 5: Solve for x
    x = 20,629,909,515.50/157,178.12
  6. Step 6: Final answer
    x = 131,251.79

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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.