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Finding the Fourth Proportional to 142,041.33, 212,859 and 104,305.41

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Solution

The fourth proportional to 142,041.33, 212,859 and 104,305.41 is: 156,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,041.33 : 212,859 = 104,305.41 : x
  2. Step 2: Convert to fraction form
    142,041.33/212,859 = 104,305.41/x
  3. Step 3: Cross multiply
    142,041.33x = 212,859 × 104,305.41
  4. Step 4: Simplify right side
    142,041.33x = 22,202,345,267.19
  5. Step 5: Solve for x
    x = 22,202,345,267.19/142,041.33
  6. Step 6: Final answer
    x = 156,309.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.