Home / 184,862.15-255,109.76-99,979.21

Finding the Fourth Proportional to 184,862.15, 255,109.76 and 99,979.21

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Solution

The fourth proportional to 184,862.15, 255,109.76 and 99,979.21 is: 137,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,862.15 : 255,109.76 = 99,979.21 : x
  2. Step 2: Convert to fraction form
    184,862.15/255,109.76 = 99,979.21/x
  3. Step 3: Cross multiply
    184,862.15x = 255,109.76 × 99,979.21
  4. Step 4: Simplify right side
    184,862.15x = 25,505,672,025.70
  5. Step 5: Solve for x
    x = 25,505,672,025.70/184,862.15
  6. Step 6: Final answer
    x = 137,971.31

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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.