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Finding the Fourth Proportional to 164,820.73, 247,083.46 and 85,844.51

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Solution

The fourth proportional to 164,820.73, 247,083.46 and 85,844.51 is: 128,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,820.73 : 247,083.46 = 85,844.51 : x
  2. Step 2: Convert to fraction form
    164,820.73/247,083.46 = 85,844.51/x
  3. Step 3: Cross multiply
    164,820.73x = 247,083.46 × 85,844.51
  4. Step 4: Simplify right side
    164,820.73x = 21,210,758,552.80
  5. Step 5: Solve for x
    x = 21,210,758,552.80/164,820.73
  6. Step 6: Final answer
    x = 128,689.87

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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.