Home / 161,316.68-222,547.38-100,781.96

Finding the Fourth Proportional to 161,316.68, 222,547.38 and 100,781.96

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Solution

The fourth proportional to 161,316.68, 222,547.38 and 100,781.96 is: 139,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,316.68 : 222,547.38 = 100,781.96 : x
  2. Step 2: Convert to fraction form
    161,316.68/222,547.38 = 100,781.96/x
  3. Step 3: Cross multiply
    161,316.68x = 222,547.38 × 100,781.96
  4. Step 4: Simplify right side
    161,316.68x = 22,428,761,149.26
  5. Step 5: Solve for x
    x = 22,428,761,149.26/161,316.68
  6. Step 6: Final answer
    x = 139,035.60

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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.