Home / 135,831.60-187,438.59-75,399.26

Finding the Fourth Proportional to 135,831.60, 187,438.59 and 75,399.26

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Solution

The fourth proportional to 135,831.60, 187,438.59 and 75,399.26 is: 104,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,831.60 : 187,438.59 = 75,399.26 : x
  2. Step 2: Convert to fraction form
    135,831.60/187,438.59 = 75,399.26/x
  3. Step 3: Cross multiply
    135,831.60x = 187,438.59 × 75,399.26
  4. Step 4: Simplify right side
    135,831.60x = 14,132,730,044.25
  5. Step 5: Solve for x
    x = 14,132,730,044.25/135,831.60
  6. Step 6: Final answer
    x = 104,045.97

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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.