Home / 239,407.11-359,192.68-81,746.28

Finding the Fourth Proportional to 239,407.11, 359,192.68 and 81,746.28

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Solution

The fourth proportional to 239,407.11, 359,192.68 and 81,746.28 is: 122,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,407.11 : 359,192.68 = 81,746.28 : x
  2. Step 2: Convert to fraction form
    239,407.11/359,192.68 = 81,746.28/x
  3. Step 3: Cross multiply
    239,407.11x = 359,192.68 × 81,746.28
  4. Step 4: Simplify right side
    239,407.11x = 29,362,665,188.86
  5. Step 5: Solve for x
    x = 29,362,665,188.86/239,407.11
  6. Step 6: Final answer
    x = 122,647.42

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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.