Home / 151,365.32-208,884.19-87,740.02

Finding the Fourth Proportional to 151,365.32, 208,884.19 and 87,740.02

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Solution

The fourth proportional to 151,365.32, 208,884.19 and 87,740.02 is: 121,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,365.32 : 208,884.19 = 87,740.02 : x
  2. Step 2: Convert to fraction form
    151,365.32/208,884.19 = 87,740.02/x
  3. Step 3: Cross multiply
    151,365.32x = 208,884.19 × 87,740.02
  4. Step 4: Simplify right side
    151,365.32x = 18,327,501,963.86
  5. Step 5: Solve for x
    x = 18,327,501,963.86/151,365.32
  6. Step 6: Final answer
    x = 121,081.25

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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.