Home / 130,597.75-196,126.32-128,727.86

Finding the Fourth Proportional to 130,597.75, 196,126.32 and 128,727.86

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Solution

The fourth proportional to 130,597.75, 196,126.32 and 128,727.86 is: 193,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,597.75 : 196,126.32 = 128,727.86 : x
  2. Step 2: Convert to fraction form
    130,597.75/196,126.32 = 128,727.86/x
  3. Step 3: Cross multiply
    130,597.75x = 196,126.32 × 128,727.86
  4. Step 4: Simplify right side
    130,597.75x = 25,246,921,463.28
  5. Step 5: Solve for x
    x = 25,246,921,463.28/130,597.75
  6. Step 6: Final answer
    x = 193,318.20

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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.