Home / 110,721.60-166,082.40-31,831.20

Finding the Fourth Proportional to 110,721.60, 166,082.40 and 31,831.20

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Solution

The fourth proportional to 110,721.60, 166,082.40 and 31,831.20 is: 47,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,721.60 : 166,082.40 = 31,831.20 : x
  2. Step 2: Convert to fraction form
    110,721.60/166,082.40 = 31,831.20/x
  3. Step 3: Cross multiply
    110,721.60x = 166,082.40 × 31,831.20
  4. Step 4: Simplify right side
    110,721.60x = 5,286,602,090.88
  5. Step 5: Solve for x
    x = 5,286,602,090.88/110,721.60
  6. Step 6: Final answer
    x = 47,746.80

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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.