Home / 130,400.93-195,601.39-71,204.31

Finding the Fourth Proportional to 130,400.93, 195,601.39 and 71,204.31

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Solution

The fourth proportional to 130,400.93, 195,601.39 and 71,204.31 is: 106,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400.93 : 195,601.39 = 71,204.31 : x
  2. Step 2: Convert to fraction form
    130,400.93/195,601.39 = 71,204.31/x
  3. Step 3: Cross multiply
    130,400.93x = 195,601.39 × 71,204.31
  4. Step 4: Simplify right side
    130,400.93x = 13,927,661,831.98
  5. Step 5: Solve for x
    x = 13,927,661,831.98/130,400.93
  6. Step 6: Final answer
    x = 106,806.46

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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.