Home / 159,334.33-219,831.76-90,412.38

Finding the Fourth Proportional to 159,334.33, 219,831.76 and 90,412.38

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Solution

The fourth proportional to 159,334.33, 219,831.76 and 90,412.38 is: 124,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,334.33 : 219,831.76 = 90,412.38 : x
  2. Step 2: Convert to fraction form
    159,334.33/219,831.76 = 90,412.38/x
  3. Step 3: Cross multiply
    159,334.33x = 219,831.76 × 90,412.38
  4. Step 4: Simplify right side
    159,334.33x = 19,875,512,621.19
  5. Step 5: Solve for x
    x = 19,875,512,621.19/159,334.33
  6. Step 6: Final answer
    x = 124,740.93

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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.