Home / 98,007.98-135,327.18-75,311.18

Finding the Fourth Proportional to 98,007.98, 135,327.18 and 75,311.18

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Solution

The fourth proportional to 98,007.98, 135,327.18 and 75,311.18 is: 103,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.98 : 135,327.18 = 75,311.18 : x
  2. Step 2: Convert to fraction form
    98,007.98/135,327.18 = 75,311.18/x
  3. Step 3: Cross multiply
    98,007.98x = 135,327.18 × 75,311.18
  4. Step 4: Simplify right side
    98,007.98x = 10,191,649,611.87
  5. Step 5: Solve for x
    x = 10,191,649,611.87/98,007.98
  6. Step 6: Final answer
    x = 103,987.96

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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.