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Finding the Fourth Proportional to 117,154.34, 175,732.12 and 28,407.86

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Solution

The fourth proportional to 117,154.34, 175,732.12 and 28,407.86 is: 42,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,154.34 : 175,732.12 = 28,407.86 : x
  2. Step 2: Convert to fraction form
    117,154.34/175,732.12 = 28,407.86/x
  3. Step 3: Cross multiply
    117,154.34x = 175,732.12 × 28,407.86
  4. Step 4: Simplify right side
    117,154.34x = 4,992,173,462.46
  5. Step 5: Solve for x
    x = 4,992,173,462.46/117,154.34
  6. Step 6: Final answer
    x = 42,611.94

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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.