Home / 159,444.97-220,031.43-87,831.67

Finding the Fourth Proportional to 159,444.97, 220,031.43 and 87,831.67

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Solution

The fourth proportional to 159,444.97, 220,031.43 and 87,831.67 is: 121,206.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,444.97 : 220,031.43 = 87,831.67 : x
  2. Step 2: Convert to fraction form
    159,444.97/220,031.43 = 87,831.67/x
  3. Step 3: Cross multiply
    159,444.97x = 220,031.43 × 87,831.67
  4. Step 4: Simplify right side
    159,444.97x = 19,325,727,949.39
  5. Step 5: Solve for x
    x = 19,325,727,949.39/159,444.97
  6. Step 6: Final answer
    x = 121,206.26

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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.