Home / 181,921.59-272,911.55-76,756.05

Finding the Fourth Proportional to 181,921.59, 272,911.55 and 76,756.05

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Solution

The fourth proportional to 181,921.59, 272,911.55 and 76,756.05 is: 115,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,921.59 : 272,911.55 = 76,756.05 : x
  2. Step 2: Convert to fraction form
    181,921.59/272,911.55 = 76,756.05/x
  3. Step 3: Cross multiply
    181,921.59x = 272,911.55 × 76,756.05
  4. Step 4: Simplify right side
    181,921.59x = 20,947,612,193.60
  5. Step 5: Solve for x
    x = 20,947,612,193.60/181,921.59
  6. Step 6: Final answer
    x = 115,146.38

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1.5x scale

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.