Home / 124,499.20-186,748.80-102,629.20

Finding the Fourth Proportional to 124,499.20, 186,748.80 and 102,629.20

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Solution

The fourth proportional to 124,499.20, 186,748.80 and 102,629.20 is: 153,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,499.20 : 186,748.80 = 102,629.20 : x
  2. Step 2: Convert to fraction form
    124,499.20/186,748.80 = 102,629.20/x
  3. Step 3: Cross multiply
    124,499.20x = 186,748.80 × 102,629.20
  4. Step 4: Simplify right side
    124,499.20x = 19,165,879,944.96
  5. Step 5: Solve for x
    x = 19,165,879,944.96/124,499.20
  6. Step 6: Final answer
    x = 153,943.80

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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.