Home / 254,127.11-381,112.88-85,602.24

Finding the Fourth Proportional to 254,127.11, 381,112.88 and 85,602.24

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Solution

The fourth proportional to 254,127.11, 381,112.88 and 85,602.24 is: 128,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,127.11 : 381,112.88 = 85,602.24 : x
  2. Step 2: Convert to fraction form
    254,127.11/381,112.88 = 85,602.24/x
  3. Step 3: Cross multiply
    254,127.11x = 381,112.88 × 85,602.24
  4. Step 4: Simplify right side
    254,127.11x = 32,624,115,792.84
  5. Step 5: Solve for x
    x = 32,624,115,792.84/254,127.11
  6. Step 6: Final answer
    x = 128,377.16

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1.5x scale

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.