Home / 151,341.76-208,851.62-87,716.46

Finding the Fourth Proportional to 151,341.76, 208,851.62 and 87,716.46

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Solution

The fourth proportional to 151,341.76, 208,851.62 and 87,716.46 is: 121,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,341.76 : 208,851.62 = 87,716.46 : x
  2. Step 2: Convert to fraction form
    151,341.76/208,851.62 = 87,716.46/x
  3. Step 3: Cross multiply
    151,341.76x = 208,851.62 × 87,716.46
  4. Step 4: Simplify right side
    151,341.76x = 18,319,725,609.68
  5. Step 5: Solve for x
    x = 18,319,725,609.68/151,341.76
  6. Step 6: Final answer
    x = 121,048.71

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1.5x scale

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.