Home / 161,210.63-222,401.60-100,676.18

Finding the Fourth Proportional to 161,210.63, 222,401.60 and 100,676.18

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Solution

The fourth proportional to 161,210.63, 222,401.60 and 100,676.18 is: 138,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,210.63 : 222,401.60 = 100,676.18 : x
  2. Step 2: Convert to fraction form
    161,210.63/222,401.60 = 100,676.18/x
  3. Step 3: Cross multiply
    161,210.63x = 222,401.60 × 100,676.18
  4. Step 4: Simplify right side
    161,210.63x = 22,390,543,010.51
  5. Step 5: Solve for x
    x = 22,390,543,010.51/161,210.63
  6. Step 6: Final answer
    x = 138,889.99

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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.