Home / 80,590.83-120,294.73-74,653.13

Finding the Fourth Proportional to 80,590.83, 120,294.73 and 74,653.13

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Solution

The fourth proportional to 80,590.83, 120,294.73 and 74,653.13 is: 111,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,590.83 : 120,294.73 = 74,653.13 : x
  2. Step 2: Convert to fraction form
    80,590.83/120,294.73 = 74,653.13/x
  3. Step 3: Cross multiply
    80,590.83x = 120,294.73 × 74,653.13
  4. Step 4: Simplify right side
    80,590.83x = 8,980,377,328.90
  5. Step 5: Solve for x
    x = 8,980,377,328.90/80,590.83
  6. Step 6: Final answer
    x = 111,431.75

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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.