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Finding the Fourth Proportional to 171,620.64, 257,502.24 and 92,642.40

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Solution

The fourth proportional to 171,620.64, 257,502.24 and 92,642.40 is: 139,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,620.64 : 257,502.24 = 92,642.40 : x
  2. Step 2: Convert to fraction form
    171,620.64/257,502.24 = 92,642.40/x
  3. Step 3: Cross multiply
    171,620.64x = 257,502.24 × 92,642.40
  4. Step 4: Simplify right side
    171,620.64x = 23,855,625,518.98
  5. Step 5: Solve for x
    x = 23,855,625,518.98/171,620.64
  6. Step 6: Final answer
    x = 139,002.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.