Home / 145,167.19-200,330.72-81,504.98

Finding the Fourth Proportional to 145,167.19, 200,330.72 and 81,504.98

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Solution

The fourth proportional to 145,167.19, 200,330.72 and 81,504.98 is: 112,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.19 : 200,330.72 = 81,504.98 : x
  2. Step 2: Convert to fraction form
    145,167.19/200,330.72 = 81,504.98/x
  3. Step 3: Cross multiply
    145,167.19x = 200,330.72 × 81,504.98
  4. Step 4: Simplify right side
    145,167.19x = 16,327,952,101.55
  5. Step 5: Solve for x
    x = 16,327,952,101.55/145,167.19
  6. Step 6: Final answer
    x = 112,476.88

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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.