Home / 149,235.14-205,934.10-84,705.70

Finding the Fourth Proportional to 149,235.14, 205,934.10 and 84,705.70

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Solution

The fourth proportional to 149,235.14, 205,934.10 and 84,705.70 is: 116,887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,235.14 : 205,934.10 = 84,705.70 : x
  2. Step 2: Convert to fraction form
    149,235.14/205,934.10 = 84,705.70/x
  3. Step 3: Cross multiply
    149,235.14x = 205,934.10 × 84,705.70
  4. Step 4: Simplify right side
    149,235.14x = 17,443,792,124.48
  5. Step 5: Solve for x
    x = 17,443,792,124.48/149,235.14
  6. Step 6: Final answer
    x = 116,887.97

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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.