Home / 102,539.75-153,908.10-49,986.14

Finding the Fourth Proportional to 102,539.75, 153,908.10 and 49,986.14

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Solution

The fourth proportional to 102,539.75, 153,908.10 and 49,986.14 is: 75,027.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,539.75 : 153,908.10 = 49,986.14 : x
  2. Step 2: Convert to fraction form
    102,539.75/153,908.10 = 49,986.14/x
  3. Step 3: Cross multiply
    102,539.75x = 153,908.10 × 49,986.14
  4. Step 4: Simplify right side
    102,539.75x = 7,693,271,064.19
  5. Step 5: Solve for x
    x = 7,693,271,064.19/102,539.75
  6. Step 6: Final answer
    x = 75,027.21

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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.