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Finding the Fourth Proportional to 92,080.80, 137,354.40 and 90,556.92

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Solution

The fourth proportional to 92,080.80, 137,354.40 and 90,556.92 is: 135,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,080.80 : 137,354.40 = 90,556.92 : x
  2. Step 2: Convert to fraction form
    92,080.80/137,354.40 = 90,556.92/x
  3. Step 3: Cross multiply
    92,080.80x = 137,354.40 × 90,556.92
  4. Step 4: Simplify right side
    92,080.80x = 12,438,391,412.45
  5. Step 5: Solve for x
    x = 12,438,391,412.45/92,080.80
  6. Step 6: Final answer
    x = 135,081.27

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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.