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Finding the Fourth Proportional to 108,876.86, 149,938.98 and 98,029.34

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Solution

The fourth proportional to 108,876.86, 149,938.98 and 98,029.34 is: 135,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,876.86 : 149,938.98 = 98,029.34 : x
  2. Step 2: Convert to fraction form
    108,876.86/149,938.98 = 98,029.34/x
  3. Step 3: Cross multiply
    108,876.86x = 149,938.98 × 98,029.34
  4. Step 4: Simplify right side
    108,876.86x = 14,698,419,249.67
  5. Step 5: Solve for x
    x = 14,698,419,249.67/108,876.86
  6. Step 6: Final answer
    x = 135,000.40

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1.5x scale

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.