Home / 145,724.74-201,110.43-81,198.25

Finding the Fourth Proportional to 145,724.74, 201,110.43 and 81,198.25

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Solution

The fourth proportional to 145,724.74, 201,110.43 and 81,198.25 is: 112,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,724.74 : 201,110.43 = 81,198.25 : x
  2. Step 2: Convert to fraction form
    145,724.74/201,110.43 = 81,198.25/x
  3. Step 3: Cross multiply
    145,724.74x = 201,110.43 × 81,198.25
  4. Step 4: Simplify right side
    145,724.74x = 16,329,814,972.75
  5. Step 5: Solve for x
    x = 16,329,814,972.75/145,724.74
  6. Step 6: Final answer
    x = 112,059.32

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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.