Home / 145,537.18-200,840.97-81,874.96

Finding the Fourth Proportional to 145,537.18, 200,840.97 and 81,874.96

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Solution

The fourth proportional to 145,537.18, 200,840.97 and 81,874.96 is: 112,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,537.18 : 200,840.97 = 81,874.96 : x
  2. Step 2: Convert to fraction form
    145,537.18/200,840.97 = 81,874.96/x
  3. Step 3: Cross multiply
    145,537.18x = 200,840.97 × 81,874.96
  4. Step 4: Simplify right side
    145,537.18x = 16,443,846,385.11
  5. Step 5: Solve for x
    x = 16,443,846,385.11/145,537.18
  6. Step 6: Final answer
    x = 112,987.25

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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.