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Finding the Fourth Proportional to 163,570.44, 225,746.02 and 90,980.68

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Solution

The fourth proportional to 163,570.44, 225,746.02 and 90,980.68 is: 125,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,570.44 : 225,746.02 = 90,980.68 : x
  2. Step 2: Convert to fraction form
    163,570.44/225,746.02 = 90,980.68/x
  3. Step 3: Cross multiply
    163,570.44x = 225,746.02 × 90,980.68
  4. Step 4: Simplify right side
    163,570.44x = 20,538,526,406.89
  5. Step 5: Solve for x
    x = 20,538,526,406.89/163,570.44
  6. Step 6: Final answer
    x = 125,563.80

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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.