Home / 145,831.41-218,984.44-90,026.26

Finding the Fourth Proportional to 145,831.41, 218,984.44 and 90,026.26

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Solution

The fourth proportional to 145,831.41, 218,984.44 and 90,026.26 is: 135,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,831.41 : 218,984.44 = 90,026.26 : x
  2. Step 2: Convert to fraction form
    145,831.41/218,984.44 = 90,026.26/x
  3. Step 3: Cross multiply
    145,831.41x = 218,984.44 × 90,026.26
  4. Step 4: Simplify right side
    145,831.41x = 19,714,349,906.33
  5. Step 5: Solve for x
    x = 19,714,349,906.33/145,831.41
  6. Step 6: Final answer
    x = 135,185.89

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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.