Home / 161,011.72-222,196.98-100,617.46

Finding the Fourth Proportional to 161,011.72, 222,196.98 and 100,617.46

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Solution

The fourth proportional to 161,011.72, 222,196.98 and 100,617.46 is: 138,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,011.72 : 222,196.98 = 100,617.46 : x
  2. Step 2: Convert to fraction form
    161,011.72/222,196.98 = 100,617.46/x
  3. Step 3: Cross multiply
    161,011.72x = 222,196.98 × 100,617.46
  4. Step 4: Simplify right side
    161,011.72x = 22,356,895,747.27
  5. Step 5: Solve for x
    x = 22,356,895,747.27/161,011.72
  6. Step 6: Final answer
    x = 138,852.60

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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.