Home / 104,206.50-156,205.80-40,987.08

Finding the Fourth Proportional to 104,206.50, 156,205.80 and 40,987.08

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Solution

The fourth proportional to 104,206.50, 156,205.80 and 40,987.08 is: 61,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,206.50 : 156,205.80 = 40,987.08 : x
  2. Step 2: Convert to fraction form
    104,206.50/156,205.80 = 40,987.08/x
  3. Step 3: Cross multiply
    104,206.50x = 156,205.80 × 40,987.08
  4. Step 4: Simplify right side
    104,206.50x = 6,402,419,621.06
  5. Step 5: Solve for x
    x = 6,402,419,621.06/104,206.50
  6. Step 6: Final answer
    x = 61,439.73

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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.