Home / 130,767.12-196,121.52-51,860.16

Finding the Fourth Proportional to 130,767.12, 196,121.52 and 51,860.16

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Solution

The fourth proportional to 130,767.12, 196,121.52 and 51,860.16 is: 77,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,767.12 : 196,121.52 = 51,860.16 : x
  2. Step 2: Convert to fraction form
    130,767.12/196,121.52 = 51,860.16/x
  3. Step 3: Cross multiply
    130,767.12x = 196,121.52 × 51,860.16
  4. Step 4: Simplify right side
    130,767.12x = 10,170,893,406.64
  5. Step 5: Solve for x
    x = 10,170,893,406.64/130,767.12
  6. Step 6: Final answer
    x = 77,778.68

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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.