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Finding the Fourth Proportional to 124,598.25, 171,885.71 and 81,558.77

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Solution

The fourth proportional to 124,598.25, 171,885.71 and 81,558.77 is: 112,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,598.25 : 171,885.71 = 81,558.77 : x
  2. Step 2: Convert to fraction form
    124,598.25/171,885.71 = 81,558.77/x
  3. Step 3: Cross multiply
    124,598.25x = 171,885.71 × 81,558.77
  4. Step 4: Simplify right side
    124,598.25x = 14,018,786,432.65
  5. Step 5: Solve for x
    x = 14,018,786,432.65/124,598.25
  6. Step 6: Final answer
    x = 112,511.90

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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.