Home / 155,917.03-215,165.45-84,297.03

Finding the Fourth Proportional to 155,917.03, 215,165.45 and 84,297.03

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Solution

The fourth proportional to 155,917.03, 215,165.45 and 84,297.03 is: 116,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,917.03 : 215,165.45 = 84,297.03 : x
  2. Step 2: Convert to fraction form
    155,917.03/215,165.45 = 84,297.03/x
  3. Step 3: Cross multiply
    155,917.03x = 215,165.45 × 84,297.03
  4. Step 4: Simplify right side
    155,917.03x = 18,137,807,972.13
  5. Step 5: Solve for x
    x = 18,137,807,972.13/155,917.03
  6. Step 6: Final answer
    x = 116,329.87

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1.5x scale

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.