Home / 112,983.35-155,911.80-61,994.81

Finding the Fourth Proportional to 112,983.35, 155,911.80 and 61,994.81

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Solution

The fourth proportional to 112,983.35, 155,911.80 and 61,994.81 is: 85,549.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,983.35 : 155,911.80 = 61,994.81 : x
  2. Step 2: Convert to fraction form
    112,983.35/155,911.80 = 61,994.81/x
  3. Step 3: Cross multiply
    112,983.35x = 155,911.80 × 61,994.81
  4. Step 4: Simplify right side
    112,983.35x = 9,665,722,107.78
  5. Step 5: Solve for x
    x = 9,665,722,107.78/112,983.35
  6. Step 6: Final answer
    x = 85,549.97

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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.