Home / 155,299.83-214,298.98-90,784.18

Finding the Fourth Proportional to 155,299.83, 214,298.98 and 90,784.18

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Solution

The fourth proportional to 155,299.83, 214,298.98 and 90,784.18 is: 125,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,299.83 : 214,298.98 = 90,784.18 : x
  2. Step 2: Convert to fraction form
    155,299.83/214,298.98 = 90,784.18/x
  3. Step 3: Cross multiply
    155,299.83x = 214,298.98 × 90,784.18
  4. Step 4: Simplify right side
    155,299.83x = 19,454,957,215.05
  5. Step 5: Solve for x
    x = 19,454,957,215.05/155,299.83
  6. Step 6: Final answer
    x = 125,273.53

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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.