Home / 148,942.64-205,535.64-81,874.16

Finding the Fourth Proportional to 148,942.64, 205,535.64 and 81,874.16

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Solution

The fourth proportional to 148,942.64, 205,535.64 and 81,874.16 is: 112,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,942.64 : 205,535.64 = 81,874.16 : x
  2. Step 2: Convert to fraction form
    148,942.64/205,535.64 = 81,874.16/x
  3. Step 3: Cross multiply
    148,942.64x = 205,535.64 × 81,874.16
  4. Step 4: Simplify right side
    148,942.64x = 16,828,057,875.06
  5. Step 5: Solve for x
    x = 16,828,057,875.06/148,942.64
  6. Step 6: Final answer
    x = 112,983.48

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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.