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Finding the Fourth Proportional to 108,108.87, 149,108.14 and 93,026.80

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Solution

The fourth proportional to 108,108.87, 149,108.14 and 93,026.80 is: 128,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,108.87 : 149,108.14 = 93,026.80 : x
  2. Step 2: Convert to fraction form
    108,108.87/149,108.14 = 93,026.80/x
  3. Step 3: Cross multiply
    108,108.87x = 149,108.14 × 93,026.80
  4. Step 4: Simplify right side
    108,108.87x = 13,871,053,118.15
  5. Step 5: Solve for x
    x = 13,871,053,118.15/108,108.87
  6. Step 6: Final answer
    x = 128,306.34

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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.