Home / 254,154.10-381,108.02-76,628.02

Finding the Fourth Proportional to 254,154.10, 381,108.02 and 76,628.02

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Solution

The fourth proportional to 254,154.10, 381,108.02 and 76,628.02 is: 114,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,154.10 : 381,108.02 = 76,628.02 : x
  2. Step 2: Convert to fraction form
    254,154.10/381,108.02 = 76,628.02/x
  3. Step 3: Cross multiply
    254,154.10x = 381,108.02 × 76,628.02
  4. Step 4: Simplify right side
    254,154.10x = 29,203,552,978.72
  5. Step 5: Solve for x
    x = 29,203,552,978.72/254,154.10
  6. Step 6: Final answer
    x = 114,904.91

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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.