Home / 161,703.35-221,534.39-155,642.85

Finding the Fourth Proportional to 161,703.35, 221,534.39 and 155,642.85

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Solution

The fourth proportional to 161,703.35, 221,534.39 and 155,642.85 is: 213,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,703.35 : 221,534.39 = 155,642.85 : x
  2. Step 2: Convert to fraction form
    161,703.35/221,534.39 = 155,642.85/x
  3. Step 3: Cross multiply
    161,703.35x = 221,534.39 × 155,642.85
  4. Step 4: Simplify right side
    161,703.35x = 34,480,244,468.81
  5. Step 5: Solve for x
    x = 34,480,244,468.81/161,703.35
  6. Step 6: Final answer
    x = 213,231.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.