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Finding the Fourth Proportional to 92,108.39, 137,638.16 and 69,162.63

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Solution

The fourth proportional to 92,108.39, 137,638.16 and 69,162.63 is: 103,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,108.39 : 137,638.16 = 69,162.63 : x
  2. Step 2: Convert to fraction form
    92,108.39/137,638.16 = 69,162.63/x
  3. Step 3: Cross multiply
    92,108.39x = 137,638.16 × 69,162.63
  4. Step 4: Simplify right side
    92,108.39x = 9,519,416,788.15
  5. Step 5: Solve for x
    x = 9,519,416,788.15/92,108.39
  6. Step 6: Final answer
    x = 103,350.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.