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Finding the Fourth Proportional to 163,869.06, 245,755.16 and 83,857.67

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Solution

The fourth proportional to 163,869.06, 245,755.16 and 83,857.67 is: 125,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,869.06 : 245,755.16 = 83,857.67 : x
  2. Step 2: Convert to fraction form
    163,869.06/245,755.16 = 83,857.67/x
  3. Step 3: Cross multiply
    163,869.06x = 245,755.16 × 83,857.67
  4. Step 4: Simplify right side
    163,869.06x = 20,608,455,108.08
  5. Step 5: Solve for x
    x = 20,608,455,108.08/163,869.06
  6. Step 6: Final answer
    x = 125,761.72

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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.