Home / 155,816.95-215,027.38-84,196.97

Finding the Fourth Proportional to 155,816.95, 215,027.38 and 84,196.97

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Solution

The fourth proportional to 155,816.95, 215,027.38 and 84,196.97 is: 116,191.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,816.95 : 215,027.38 = 84,196.97 : x
  2. Step 2: Convert to fraction form
    155,816.95/215,027.38 = 84,196.97/x
  3. Step 3: Cross multiply
    155,816.95x = 215,027.38 × 84,196.97
  4. Step 4: Simplify right side
    155,816.95x = 18,104,653,535.96
  5. Step 5: Solve for x
    x = 18,104,653,535.96/155,816.95
  6. Step 6: Final answer
    x = 116,191.81

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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.