Home / 155,844.09-215,064.90-84,224.07

Finding the Fourth Proportional to 155,844.09, 215,064.90 and 84,224.07

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Solution

The fourth proportional to 155,844.09, 215,064.90 and 84,224.07 is: 116,229.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,844.09 : 215,064.90 = 84,224.07 : x
  2. Step 2: Convert to fraction form
    155,844.09/215,064.90 = 84,224.07/x
  3. Step 3: Cross multiply
    155,844.09x = 215,064.90 × 84,224.07
  4. Step 4: Simplify right side
    155,844.09x = 18,113,641,192.14
  5. Step 5: Solve for x
    x = 18,113,641,192.14/155,844.09
  6. Step 6: Final answer
    x = 116,229.25

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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.