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Finding the Fourth Proportional to 159,439.40, 220,041.90 and 119,083.10

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Solution

The fourth proportional to 159,439.40, 220,041.90 and 119,083.10 is: 164,346.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,439.40 : 220,041.90 = 119,083.10 : x
  2. Step 2: Convert to fraction form
    159,439.40/220,041.90 = 119,083.10/x
  3. Step 3: Cross multiply
    159,439.40x = 220,041.90 × 119,083.10
  4. Step 4: Simplify right side
    159,439.40x = 26,203,271,581.89
  5. Step 5: Solve for x
    x = 26,203,271,581.89/159,439.40
  6. Step 6: Final answer
    x = 164,346.28

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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.