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Finding the Fourth Proportional to 191,402.48, 264,129.90 and 106,517.72

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Solution

The fourth proportional to 191,402.48, 264,129.90 and 106,517.72 is: 146,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,402.48 : 264,129.90 = 106,517.72 : x
  2. Step 2: Convert to fraction form
    191,402.48/264,129.90 = 106,517.72/x
  3. Step 3: Cross multiply
    191,402.48x = 264,129.90 × 106,517.72
  4. Step 4: Simplify right side
    191,402.48x = 28,134,513,411.18
  5. Step 5: Solve for x
    x = 28,134,513,411.18/191,402.48
  6. Step 6: Final answer
    x = 146,991.38

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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.