Home / 155,943.68-215,202.15-84,323.07

Finding the Fourth Proportional to 155,943.68, 215,202.15 and 84,323.07

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Solution

The fourth proportional to 155,943.68, 215,202.15 and 84,323.07 is: 116,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.68 : 215,202.15 = 84,323.07 : x
  2. Step 2: Convert to fraction form
    155,943.68/215,202.15 = 84,323.07/x
  3. Step 3: Cross multiply
    155,943.68x = 215,202.15 × 84,323.07
  4. Step 4: Simplify right side
    155,943.68x = 18,146,505,958.60
  5. Step 5: Solve for x
    x = 18,146,505,958.60/155,943.68
  6. Step 6: Final answer
    x = 116,365.77

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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.