Home / 164,821.73-247,084.96-85,845.51

Finding the Fourth Proportional to 164,821.73, 247,084.96 and 85,845.51

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Solution

The fourth proportional to 164,821.73, 247,084.96 and 85,845.51 is: 128,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,821.73 : 247,084.96 = 85,845.51 : x
  2. Step 2: Convert to fraction form
    164,821.73/247,084.96 = 85,845.51/x
  3. Step 3: Cross multiply
    164,821.73x = 247,084.96 × 85,845.51
  4. Step 4: Simplify right side
    164,821.73x = 21,211,134,404.53
  5. Step 5: Solve for x
    x = 21,211,134,404.53/164,821.73
  6. Step 6: Final answer
    x = 128,691.37

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1.5x scale

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.