Home / 145,791.48-201,156.84-82,129.20

Finding the Fourth Proportional to 145,791.48, 201,156.84 and 82,129.20

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Solution

The fourth proportional to 145,791.48, 201,156.84 and 82,129.20 is: 113,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,791.48 : 201,156.84 = 82,129.20 : x
  2. Step 2: Convert to fraction form
    145,791.48/201,156.84 = 82,129.20/x
  3. Step 3: Cross multiply
    145,791.48x = 201,156.84 × 82,129.20
  4. Step 4: Simplify right side
    145,791.48x = 16,520,850,343.73
  5. Step 5: Solve for x
    x = 16,520,850,343.73/145,791.48
  6. Step 6: Final answer
    x = 113,318.35

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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.