Home / 145,626.36-200,963.95-81,964.15

Finding the Fourth Proportional to 145,626.36, 200,963.95 and 81,964.15

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Solution

The fourth proportional to 145,626.36, 200,963.95 and 81,964.15 is: 113,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,626.36 : 200,963.95 = 81,964.15 : x
  2. Step 2: Convert to fraction form
    145,626.36/200,963.95 = 81,964.15/x
  3. Step 3: Cross multiply
    145,626.36x = 200,963.95 × 81,964.15
  4. Step 4: Simplify right side
    145,626.36x = 16,471,840,226.54
  5. Step 5: Solve for x
    x = 16,471,840,226.54/145,626.36
  6. Step 6: Final answer
    x = 113,110.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.