Home / 145,634.01-200,962.12-81,098.37

Finding the Fourth Proportional to 145,634.01, 200,962.12 and 81,098.37

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Solution

The fourth proportional to 145,634.01, 200,962.12 and 81,098.37 is: 111,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,634.01 : 200,962.12 = 81,098.37 : x
  2. Step 2: Convert to fraction form
    145,634.01/200,962.12 = 81,098.37/x
  3. Step 3: Cross multiply
    145,634.01x = 200,962.12 × 81,098.37
  4. Step 4: Simplify right side
    145,634.01x = 16,297,700,363.74
  5. Step 5: Solve for x
    x = 16,297,700,363.74/145,634.01
  6. Step 6: Final answer
    x = 111,908.62

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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.