Home / 163,693.12-245,224.32-137,081.92

Finding the Fourth Proportional to 163,693.12, 245,224.32 and 137,081.92

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Solution

The fourth proportional to 163,693.12, 245,224.32 and 137,081.92 is: 205,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,693.12 : 245,224.32 = 137,081.92 : x
  2. Step 2: Convert to fraction form
    163,693.12/245,224.32 = 137,081.92/x
  3. Step 3: Cross multiply
    163,693.12x = 245,224.32 × 137,081.92
  4. Step 4: Simplify right side
    163,693.12x = 33,615,820,616.29
  5. Step 5: Solve for x
    x = 33,615,820,616.29/163,693.12
  6. Step 6: Final answer
    x = 205,358.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.