Home / 121,211.48-181,841.88-51,090.68

Finding the Fourth Proportional to 121,211.48, 181,841.88 and 51,090.68

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Solution

The fourth proportional to 121,211.48, 181,841.88 and 51,090.68 is: 76,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.48 : 181,841.88 = 51,090.68 : x
  2. Step 2: Convert to fraction form
    121,211.48/181,841.88 = 51,090.68/x
  3. Step 3: Cross multiply
    121,211.48x = 181,841.88 × 51,090.68
  4. Step 4: Simplify right side
    121,211.48x = 9,290,425,301.68
  5. Step 5: Solve for x
    x = 9,290,425,301.68/121,211.48
  6. Step 6: Final answer
    x = 76,646.41

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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.