Home / 121,290.60-181,857.66-51,151.08

Finding the Fourth Proportional to 121,290.60, 181,857.66 and 51,151.08

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Solution

The fourth proportional to 121,290.60, 181,857.66 and 51,151.08 is: 76,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,290.60 : 181,857.66 = 51,151.08 : x
  2. Step 2: Convert to fraction form
    121,290.60/181,857.66 = 51,151.08/x
  3. Step 3: Cross multiply
    121,290.60x = 181,857.66 × 51,151.08
  4. Step 4: Simplify right side
    121,290.60x = 9,302,215,715.27
  5. Step 5: Solve for x
    x = 9,302,215,715.27/121,290.60
  6. Step 6: Final answer
    x = 76,693.62

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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.