Home / 254,173.18-381,262.52-76,681.74

Finding the Fourth Proportional to 254,173.18, 381,262.52 and 76,681.74

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Solution

The fourth proportional to 254,173.18, 381,262.52 and 76,681.74 is: 115,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,173.18 : 381,262.52 = 76,681.74 : x
  2. Step 2: Convert to fraction form
    254,173.18/381,262.52 = 76,681.74/x
  3. Step 3: Cross multiply
    254,173.18x = 381,262.52 × 76,681.74
  4. Step 4: Simplify right side
    254,173.18x = 29,235,873,430.38
  5. Step 5: Solve for x
    x = 29,235,873,430.38/254,173.18
  6. Step 6: Final answer
    x = 115,023.44

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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.