Home / 161,740.49-223,198.90-90,118.97

Finding the Fourth Proportional to 161,740.49, 223,198.90 and 90,118.97

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Solution

The fourth proportional to 161,740.49, 223,198.90 and 90,118.97 is: 124,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,740.49 : 223,198.90 = 90,118.97 : x
  2. Step 2: Convert to fraction form
    161,740.49/223,198.90 = 90,118.97/x
  3. Step 3: Cross multiply
    161,740.49x = 223,198.90 × 90,118.97
  4. Step 4: Simplify right side
    161,740.49x = 20,114,454,973.13
  5. Step 5: Solve for x
    x = 20,114,454,973.13/161,740.49
  6. Step 6: Final answer
    x = 124,362.52

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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.