Home / 121,831.10-182,303.78-100,573.46

Finding the Fourth Proportional to 121,831.10, 182,303.78 and 100,573.46

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Solution

The fourth proportional to 121,831.10, 182,303.78 and 100,573.46 is: 150,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,831.10 : 182,303.78 = 100,573.46 : x
  2. Step 2: Convert to fraction form
    121,831.10/182,303.78 = 100,573.46/x
  3. Step 3: Cross multiply
    121,831.10x = 182,303.78 × 100,573.46
  4. Step 4: Simplify right side
    121,831.10x = 18,334,921,925.68
  5. Step 5: Solve for x
    x = 18,334,921,925.68/121,831.10
  6. Step 6: Final answer
    x = 150,494.59

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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.