Home / 100,502.19-150,611.55-55,543.79

Finding the Fourth Proportional to 100,502.19, 150,611.55 and 55,543.79

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Solution

The fourth proportional to 100,502.19, 150,611.55 and 55,543.79 is: 83,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,502.19 : 150,611.55 = 55,543.79 : x
  2. Step 2: Convert to fraction form
    100,502.19/150,611.55 = 55,543.79/x
  3. Step 3: Cross multiply
    100,502.19x = 150,611.55 × 55,543.79
  4. Step 4: Simplify right side
    100,502.19x = 8,365,536,027.06
  5. Step 5: Solve for x
    x = 8,365,536,027.06/100,502.19
  6. Step 6: Final answer
    x = 83,237.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.