Home / 161,831.52-242,578.73-90,649.77

Finding the Fourth Proportional to 161,831.52, 242,578.73 and 90,649.77

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Solution

The fourth proportional to 161,831.52, 242,578.73 and 90,649.77 is: 135,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,831.52 : 242,578.73 = 90,649.77 : x
  2. Step 2: Convert to fraction form
    161,831.52/242,578.73 = 90,649.77/x
  3. Step 3: Cross multiply
    161,831.52x = 242,578.73 × 90,649.77
  4. Step 4: Simplify right side
    161,831.52x = 21,989,705,398.35
  5. Step 5: Solve for x
    x = 21,989,705,398.35/161,831.52
  6. Step 6: Final answer
    x = 135,880.24

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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.