Home / 126,133.76-189,145.81-36,156.66

Finding the Fourth Proportional to 126,133.76, 189,145.81 and 36,156.66

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Solution

The fourth proportional to 126,133.76, 189,145.81 and 36,156.66 is: 54,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,133.76 : 189,145.81 = 36,156.66 : x
  2. Step 2: Convert to fraction form
    126,133.76/189,145.81 = 36,156.66/x
  3. Step 3: Cross multiply
    126,133.76x = 189,145.81 × 36,156.66
  4. Step 4: Simplify right side
    126,133.76x = 6,838,880,652.20
  5. Step 5: Solve for x
    x = 6,838,880,652.20/126,133.76
  6. Step 6: Final answer
    x = 54,219.27

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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.