Home / 161,178.35-222,365.70-99,896.52

Finding the Fourth Proportional to 161,178.35, 222,365.70 and 99,896.52

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Solution

The fourth proportional to 161,178.35, 222,365.70 and 99,896.52 is: 137,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,178.35 : 222,365.70 = 99,896.52 : x
  2. Step 2: Convert to fraction form
    161,178.35/222,365.70 = 99,896.52/x
  3. Step 3: Cross multiply
    161,178.35x = 222,365.70 × 99,896.52
  4. Step 4: Simplify right side
    161,178.35x = 22,213,559,597.36
  5. Step 5: Solve for x
    x = 22,213,559,597.36/161,178.35
  6. Step 6: Final answer
    x = 137,819.75

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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.