Home / 148,640.06-205,293.64-97,879.72

Finding the Fourth Proportional to 148,640.06, 205,293.64 and 97,879.72

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Solution

The fourth proportional to 148,640.06, 205,293.64 and 97,879.72 is: 135,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,640.06 : 205,293.64 = 97,879.72 : x
  2. Step 2: Convert to fraction form
    148,640.06/205,293.64 = 97,879.72/x
  3. Step 3: Cross multiply
    148,640.06x = 205,293.64 × 97,879.72
  4. Step 4: Simplify right side
    148,640.06x = 20,094,084,000.98
  5. Step 5: Solve for x
    x = 20,094,084,000.98/148,640.06
  6. Step 6: Final answer
    x = 135,186.19

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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.