Home / 130,455.74-195,688.71-40,507.79

Finding the Fourth Proportional to 130,455.74, 195,688.71 and 40,507.79

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Solution

The fourth proportional to 130,455.74, 195,688.71 and 40,507.79 is: 60,763.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,455.74 : 195,688.71 = 40,507.79 : x
  2. Step 2: Convert to fraction form
    130,455.74/195,688.71 = 40,507.79/x
  3. Step 3: Cross multiply
    130,455.74x = 195,688.71 × 40,507.79
  4. Step 4: Simplify right side
    130,455.74x = 7,926,917,170.05
  5. Step 5: Solve for x
    x = 7,926,917,170.05/130,455.74
  6. Step 6: Final answer
    x = 60,763.27

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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.