Home / 161,426.76-222,878.64-101,021.80

Finding the Fourth Proportional to 161,426.76, 222,878.64 and 101,021.80

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Solution

The fourth proportional to 161,426.76, 222,878.64 and 101,021.80 is: 139,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,426.76 : 222,878.64 = 101,021.80 : x
  2. Step 2: Convert to fraction form
    161,426.76/222,878.64 = 101,021.80/x
  3. Step 3: Cross multiply
    161,426.76x = 222,878.64 × 101,021.80
  4. Step 4: Simplify right side
    161,426.76x = 22,515,601,394.35
  5. Step 5: Solve for x
    x = 22,515,601,394.35/161,426.76
  6. Step 6: Final answer
    x = 139,478.74

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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.