Home / 149,285.16-206,019.34-84,760.40

Finding the Fourth Proportional to 149,285.16, 206,019.34 and 84,760.40

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Solution

The fourth proportional to 149,285.16, 206,019.34 and 84,760.40 is: 116,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,285.16 : 206,019.34 = 84,760.40 : x
  2. Step 2: Convert to fraction form
    149,285.16/206,019.34 = 84,760.40/x
  3. Step 3: Cross multiply
    149,285.16x = 206,019.34 × 84,760.40
  4. Step 4: Simplify right side
    149,285.16x = 17,462,281,116.68
  5. Step 5: Solve for x
    x = 17,462,281,116.68/149,285.16
  6. Step 6: Final answer
    x = 116,972.66

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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.