Home / 163,489.50-245,101.86-51,111.81

Finding the Fourth Proportional to 163,489.50, 245,101.86 and 51,111.81

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Solution

The fourth proportional to 163,489.50, 245,101.86 and 51,111.81 is: 76,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,489.50 : 245,101.86 = 51,111.81 : x
  2. Step 2: Convert to fraction form
    163,489.50/245,101.86 = 51,111.81/x
  3. Step 3: Cross multiply
    163,489.50x = 245,101.86 × 51,111.81
  4. Step 4: Simplify right side
    163,489.50x = 12,527,599,698.97
  5. Step 5: Solve for x
    x = 12,527,599,698.97/163,489.50
  6. Step 6: Final answer
    x = 76,626.33

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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.