Home / 100,440.04-138,611.46-60,145.96

Finding the Fourth Proportional to 100,440.04, 138,611.46 and 60,145.96

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Solution

The fourth proportional to 100,440.04, 138,611.46 and 60,145.96 is: 83,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,440.04 : 138,611.46 = 60,145.96 : x
  2. Step 2: Convert to fraction form
    100,440.04/138,611.46 = 60,145.96/x
  3. Step 3: Cross multiply
    100,440.04x = 138,611.46 × 60,145.96
  4. Step 4: Simplify right side
    100,440.04x = 8,336,919,328.70
  5. Step 5: Solve for x
    x = 8,336,919,328.70/100,440.04
  6. Step 6: Final answer
    x = 83,003.94

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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.