Home / 151,341.86-208,851.75-87,716.57

Finding the Fourth Proportional to 151,341.86, 208,851.75 and 87,716.57

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Solution

The fourth proportional to 151,341.86, 208,851.75 and 87,716.57 is: 121,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,341.86 : 208,851.75 = 87,716.57 : x
  2. Step 2: Convert to fraction form
    151,341.86/208,851.75 = 87,716.57/x
  3. Step 3: Cross multiply
    151,341.86x = 208,851.75 × 87,716.57
  4. Step 4: Simplify right side
    151,341.86x = 18,319,758,104.24
  5. Step 5: Solve for x
    x = 18,319,758,104.24/151,341.86
  6. Step 6: Final answer
    x = 121,048.85

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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.