Home / 123,627.20-185,263.20-76,852.80

Finding the Fourth Proportional to 123,627.20, 185,263.20 and 76,852.80

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Solution

The fourth proportional to 123,627.20, 185,263.20 and 76,852.80 is: 115,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,627.20 : 185,263.20 = 76,852.80 : x
  2. Step 2: Convert to fraction form
    123,627.20/185,263.20 = 76,852.80/x
  3. Step 3: Cross multiply
    123,627.20x = 185,263.20 × 76,852.80
  4. Step 4: Simplify right side
    123,627.20x = 14,237,995,656.96
  5. Step 5: Solve for x
    x = 14,237,995,656.96/123,627.20
  6. Step 6: Final answer
    x = 115,168.80

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1.5x scale

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.