Home / 123,719.20-185,578.80-53,735.20

Finding the Fourth Proportional to 123,719.20, 185,578.80 and 53,735.20

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Solution

The fourth proportional to 123,719.20, 185,578.80 and 53,735.20 is: 80,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,719.20 : 185,578.80 = 53,735.20 : x
  2. Step 2: Convert to fraction form
    123,719.20/185,578.80 = 53,735.20/x
  3. Step 3: Cross multiply
    123,719.20x = 185,578.80 × 53,735.20
  4. Step 4: Simplify right side
    123,719.20x = 9,972,113,933.76
  5. Step 5: Solve for x
    x = 9,972,113,933.76/123,719.20
  6. Step 6: Final answer
    x = 80,602.80

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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.