Home / 133,087.30-199,630.95-54,258.10

Finding the Fourth Proportional to 133,087.30, 199,630.95 and 54,258.10

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Solution

The fourth proportional to 133,087.30, 199,630.95 and 54,258.10 is: 81,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,087.30 : 199,630.95 = 54,258.10 : x
  2. Step 2: Convert to fraction form
    133,087.30/199,630.95 = 54,258.10/x
  3. Step 3: Cross multiply
    133,087.30x = 199,630.95 × 54,258.10
  4. Step 4: Simplify right side
    133,087.30x = 10,831,596,048.20
  5. Step 5: Solve for x
    x = 10,831,596,048.20/133,087.30
  6. Step 6: Final answer
    x = 81,387.15

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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.