Home / 158,828.46-219,140.46-90,831.39

Finding the Fourth Proportional to 158,828.46, 219,140.46 and 90,831.39

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Solution

The fourth proportional to 158,828.46, 219,140.46 and 90,831.39 is: 125,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.46 : 219,140.46 = 90,831.39 : x
  2. Step 2: Convert to fraction form
    158,828.46/219,140.46 = 90,831.39/x
  3. Step 3: Cross multiply
    158,828.46x = 219,140.46 × 90,831.39
  4. Step 4: Simplify right side
    158,828.46x = 19,904,832,587.04
  5. Step 5: Solve for x
    x = 19,904,832,587.04/158,828.46
  6. Step 6: Final answer
    x = 125,322.83

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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.