Home / 130,709.52-196,082.64-51,831.72

Finding the Fourth Proportional to 130,709.52, 196,082.64 and 51,831.72

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Solution

The fourth proportional to 130,709.52, 196,082.64 and 51,831.72 is: 77,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,709.52 : 196,082.64 = 51,831.72 : x
  2. Step 2: Convert to fraction form
    130,709.52/196,082.64 = 51,831.72/x
  3. Step 3: Cross multiply
    130,709.52x = 196,082.64 × 51,831.72
  4. Step 4: Simplify right side
    130,709.52x = 10,163,300,493.34
  5. Step 5: Solve for x
    x = 10,163,300,493.34/130,709.52
  6. Step 6: Final answer
    x = 77,754.86

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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.