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Finding the Fourth Proportional to 163,237.82, 225,290.91 and 90,657.02

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Solution

The fourth proportional to 163,237.82, 225,290.91 and 90,657.02 is: 125,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,237.82 : 225,290.91 = 90,657.02 : x
  2. Step 2: Convert to fraction form
    163,237.82/225,290.91 = 90,657.02/x
  3. Step 3: Cross multiply
    163,237.82x = 225,290.91 × 90,657.02
  4. Step 4: Simplify right side
    163,237.82x = 20,424,202,533.69
  5. Step 5: Solve for x
    x = 20,424,202,533.69/163,237.82
  6. Step 6: Final answer
    x = 125,119.30

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1.5x scale

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.