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Finding the Fourth Proportional to 163,501.29, 225,637.47 and 91,879.86

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Solution

The fourth proportional to 163,501.29, 225,637.47 and 91,879.86 is: 126,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,501.29 : 225,637.47 = 91,879.86 : x
  2. Step 2: Convert to fraction form
    163,501.29/225,637.47 = 91,879.86/x
  3. Step 3: Cross multiply
    163,501.29x = 225,637.47 × 91,879.86
  4. Step 4: Simplify right side
    163,501.29x = 20,731,539,154.35
  5. Step 5: Solve for x
    x = 20,731,539,154.35/163,501.29
  6. Step 6: Final answer
    x = 126,797.40

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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.