Home / 120,831.84-166,735.52-70,560

Finding the Fourth Proportional to 120,831.84, 166,735.52 and 70,560

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Solution

The fourth proportional to 120,831.84, 166,735.52 and 70,560 is: 97,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,831.84 : 166,735.52 = 70,560 : x
  2. Step 2: Convert to fraction form
    120,831.84/166,735.52 = 70,560/x
  3. Step 3: Cross multiply
    120,831.84x = 166,735.52 × 70,560
  4. Step 4: Simplify right side
    120,831.84x = 11,764,858,291.20
  5. Step 5: Solve for x
    x = 11,764,858,291.20/120,831.84
  6. Step 6: Final answer
    x = 97,365.55

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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.