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Finding the Fourth Proportional to 161,478.40, 222,845.44 and 101,029.76

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Solution

The fourth proportional to 161,478.40, 222,845.44 and 101,029.76 is: 139,424.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,478.40 : 222,845.44 = 101,029.76 : x
  2. Step 2: Convert to fraction form
    161,478.40/222,845.44 = 101,029.76/x
  3. Step 3: Cross multiply
    161,478.40x = 222,845.44 × 101,029.76
  4. Step 4: Simplify right side
    161,478.40x = 22,514,021,320.29
  5. Step 5: Solve for x
    x = 22,514,021,320.29/161,478.40
  6. Step 6: Final answer
    x = 139,424.35

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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.