Home / 151,341.89-208,851.79-87,716.59

Finding the Fourth Proportional to 151,341.89, 208,851.79 and 87,716.59

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Solution

The fourth proportional to 151,341.89, 208,851.79 and 87,716.59 is: 121,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,341.89 : 208,851.79 = 87,716.59 : x
  2. Step 2: Convert to fraction form
    151,341.89/208,851.79 = 87,716.59/x
  3. Step 3: Cross multiply
    151,341.89x = 208,851.79 × 87,716.59
  4. Step 4: Simplify right side
    151,341.89x = 18,319,766,792.42
  5. Step 5: Solve for x
    x = 18,319,766,792.42/151,341.89
  6. Step 6: Final answer
    x = 121,048.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.