Home / 145,624.60-200,961.51-81,962.38

Finding the Fourth Proportional to 145,624.60, 200,961.51 and 81,962.38

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Solution

The fourth proportional to 145,624.60, 200,961.51 and 81,962.38 is: 113,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,624.60 : 200,961.51 = 81,962.38 : x
  2. Step 2: Convert to fraction form
    145,624.60/200,961.51 = 81,962.38/x
  3. Step 3: Cross multiply
    145,624.60x = 200,961.51 × 81,962.38
  4. Step 4: Simplify right side
    145,624.60x = 16,471,283,647.99
  5. Step 5: Solve for x
    x = 16,471,283,647.99/145,624.60
  6. Step 6: Final answer
    x = 113,107.84

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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.