Home / 155,633.85-214,795.58-91,122.75

Finding the Fourth Proportional to 155,633.85, 214,795.58 and 91,122.75

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Solution

The fourth proportional to 155,633.85, 214,795.58 and 91,122.75 is: 125,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,633.85 : 214,795.58 = 91,122.75 : x
  2. Step 2: Convert to fraction form
    155,633.85/214,795.58 = 91,122.75/x
  3. Step 3: Cross multiply
    155,633.85x = 214,795.58 × 91,122.75
  4. Step 4: Simplify right side
    155,633.85x = 19,572,763,937.45
  5. Step 5: Solve for x
    x = 19,572,763,937.45/155,633.85
  6. Step 6: Final answer
    x = 125,761.61

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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.