Home / 155,943.25-215,201.53-84,323.10

Finding the Fourth Proportional to 155,943.25, 215,201.53 and 84,323.10

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Solution

The fourth proportional to 155,943.25, 215,201.53 and 84,323.10 is: 116,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,943.25 : 215,201.53 = 84,323.10 : x
  2. Step 2: Convert to fraction form
    155,943.25/215,201.53 = 84,323.10/x
  3. Step 3: Cross multiply
    155,943.25x = 215,201.53 × 84,323.10
  4. Step 4: Simplify right side
    155,943.25x = 18,146,460,134.34
  5. Step 5: Solve for x
    x = 18,146,460,134.34/155,943.25
  6. Step 6: Final answer
    x = 116,365.79

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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.