Home / 121,177.08-181,775.34-42,289.56

Finding the Fourth Proportional to 121,177.08, 181,775.34 and 42,289.56

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Solution

The fourth proportional to 121,177.08, 181,775.34 and 42,289.56 is: 63,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,177.08 : 181,775.34 = 42,289.56 : x
  2. Step 2: Convert to fraction form
    121,177.08/181,775.34 = 42,289.56/x
  3. Step 3: Cross multiply
    121,177.08x = 181,775.34 × 42,289.56
  4. Step 4: Simplify right side
    121,177.08x = 7,687,199,147.45
  5. Step 5: Solve for x
    x = 7,687,199,147.45/121,177.08
  6. Step 6: Final answer
    x = 63,437.73

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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.