Home / 114,129.56-171,360.48-81,025.40

Finding the Fourth Proportional to 114,129.56, 171,360.48 and 81,025.40

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Solution

The fourth proportional to 114,129.56, 171,360.48 and 81,025.40 is: 121,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,129.56 : 171,360.48 = 81,025.40 : x
  2. Step 2: Convert to fraction form
    114,129.56/171,360.48 = 81,025.40/x
  3. Step 3: Cross multiply
    114,129.56x = 171,360.48 × 81,025.40
  4. Step 4: Simplify right side
    114,129.56x = 13,884,551,436.19
  5. Step 5: Solve for x
    x = 13,884,551,436.19/114,129.56
  6. Step 6: Final answer
    x = 121,656.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.