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Finding the Fourth Proportional to 171,681.80, 257,522.70 and 112,551.80

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Solution

The fourth proportional to 171,681.80, 257,522.70 and 112,551.80 is: 168,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,681.80 : 257,522.70 = 112,551.80 : x
  2. Step 2: Convert to fraction form
    171,681.80/257,522.70 = 112,551.80/x
  3. Step 3: Cross multiply
    171,681.80x = 257,522.70 × 112,551.80
  4. Step 4: Simplify right side
    171,681.80x = 28,984,643,425.86
  5. Step 5: Solve for x
    x = 28,984,643,425.86/171,681.80
  6. Step 6: Final answer
    x = 168,827.70

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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.