Home / 155,929.83-215,181.91-90,524.73

Finding the Fourth Proportional to 155,929.83, 215,181.91 and 90,524.73

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Solution

The fourth proportional to 155,929.83, 215,181.91 and 90,524.73 is: 124,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,929.83 : 215,181.91 = 90,524.73 : x
  2. Step 2: Convert to fraction form
    155,929.83/215,181.91 = 90,524.73/x
  3. Step 3: Cross multiply
    155,929.83x = 215,181.91 × 90,524.73
  4. Step 4: Simplify right side
    155,929.83x = 19,479,283,454.04
  5. Step 5: Solve for x
    x = 19,479,283,454.04/155,929.83
  6. Step 6: Final answer
    x = 124,923.39

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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.