Home / 161,942.22-223,480.60-90,320.40

Finding the Fourth Proportional to 161,942.22, 223,480.60 and 90,320.40

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Solution

The fourth proportional to 161,942.22, 223,480.60 and 90,320.40 is: 124,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,942.22 : 223,480.60 = 90,320.40 : x
  2. Step 2: Convert to fraction form
    161,942.22/223,480.60 = 90,320.40/x
  3. Step 3: Cross multiply
    161,942.22x = 223,480.60 × 90,320.40
  4. Step 4: Simplify right side
    161,942.22x = 20,184,857,184.24
  5. Step 5: Solve for x
    x = 20,184,857,184.24/161,942.22
  6. Step 6: Final answer
    x = 124,642.34

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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.