Home / 122,585.86-169,185.54-68,875.03

Finding the Fourth Proportional to 122,585.86, 169,185.54 and 68,875.03

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Solution

The fourth proportional to 122,585.86, 169,185.54 and 68,875.03 is: 95,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,585.86 : 169,185.54 = 68,875.03 : x
  2. Step 2: Convert to fraction form
    122,585.86/169,185.54 = 68,875.03/x
  3. Step 3: Cross multiply
    122,585.86x = 169,185.54 × 68,875.03
  4. Step 4: Simplify right side
    122,585.86x = 11,652,659,143.07
  5. Step 5: Solve for x
    x = 11,652,659,143.07/122,585.86
  6. Step 6: Final answer
    x = 95,057.12

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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.