Home / 161,138.10-222,359.40-93,101.76

Finding the Fourth Proportional to 161,138.10, 222,359.40 and 93,101.76

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Solution

The fourth proportional to 161,138.10, 222,359.40 and 93,101.76 is: 128,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,138.10 : 222,359.40 = 93,101.76 : x
  2. Step 2: Convert to fraction form
    161,138.10/222,359.40 = 93,101.76/x
  3. Step 3: Cross multiply
    161,138.10x = 222,359.40 × 93,101.76
  4. Step 4: Simplify right side
    161,138.10x = 20,702,051,492.54
  5. Step 5: Solve for x
    x = 20,702,051,492.54/161,138.10
  6. Step 6: Final answer
    x = 128,473.97

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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.