Home / 161,098.44-222,271.20-100,730.76

Finding the Fourth Proportional to 161,098.44, 222,271.20 and 100,730.76

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Solution

The fourth proportional to 161,098.44, 222,271.20 and 100,730.76 is: 138,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,098.44 : 222,271.20 = 100,730.76 : x
  2. Step 2: Convert to fraction form
    161,098.44/222,271.20 = 100,730.76/x
  3. Step 3: Cross multiply
    161,098.44x = 222,271.20 × 100,730.76
  4. Step 4: Simplify right side
    161,098.44x = 22,389,546,902.11
  5. Step 5: Solve for x
    x = 22,389,546,902.11/161,098.44
  6. Step 6: Final answer
    x = 138,980.53

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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.