Home / 121,174.80-181,749.26-42,290.52

Finding the Fourth Proportional to 121,174.80, 181,749.26 and 42,290.52

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Solution

The fourth proportional to 121,174.80, 181,749.26 and 42,290.52 is: 63,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,174.80 : 181,749.26 = 42,290.52 : x
  2. Step 2: Convert to fraction form
    121,174.80/181,749.26 = 42,290.52/x
  3. Step 3: Cross multiply
    121,174.80x = 181,749.26 × 42,290.52
  4. Step 4: Simplify right side
    121,174.80x = 7,686,270,715.02
  5. Step 5: Solve for x
    x = 7,686,270,715.02/121,174.80
  6. Step 6: Final answer
    x = 63,431.26

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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.