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Finding the Fourth Proportional to 181,625.76, 250,639.64 and 105,148.10

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Solution

The fourth proportional to 181,625.76, 250,639.64 and 105,148.10 is: 145,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,625.76 : 250,639.64 = 105,148.10 : x
  2. Step 2: Convert to fraction form
    181,625.76/250,639.64 = 105,148.10/x
  3. Step 3: Cross multiply
    181,625.76x = 250,639.64 × 105,148.10
  4. Step 4: Simplify right side
    181,625.76x = 26,354,280,677.49
  5. Step 5: Solve for x
    x = 26,354,280,677.49/181,625.76
  6. Step 6: Final answer
    x = 145,102.11

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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.