Home / 254,634.19-381,577.43-128,100.52

Finding the Fourth Proportional to 254,634.19, 381,577.43 and 128,100.52

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Solution

The fourth proportional to 254,634.19, 381,577.43 and 128,100.52 is: 191,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,634.19 : 381,577.43 = 128,100.52 : x
  2. Step 2: Convert to fraction form
    254,634.19/381,577.43 = 128,100.52/x
  3. Step 3: Cross multiply
    254,634.19x = 381,577.43 × 128,100.52
  4. Step 4: Simplify right side
    254,634.19x = 48,880,265,775.75
  5. Step 5: Solve for x
    x = 48,880,265,775.75/254,634.19
  6. Step 6: Final answer
    x = 191,962.70

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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.