Home / 161,822.80-223,315.55-90,201.18

Finding the Fourth Proportional to 161,822.80, 223,315.55 and 90,201.18

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Solution

The fourth proportional to 161,822.80, 223,315.55 and 90,201.18 is: 124,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,822.80 : 223,315.55 = 90,201.18 : x
  2. Step 2: Convert to fraction form
    161,822.80/223,315.55 = 90,201.18/x
  3. Step 3: Cross multiply
    161,822.80x = 223,315.55 × 90,201.18
  4. Step 4: Simplify right side
    161,822.80x = 20,143,326,122.35
  5. Step 5: Solve for x
    x = 20,143,326,122.35/161,822.80
  6. Step 6: Final answer
    x = 124,477.68

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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.