Home / 130,740.58-195,938.58-51,811.78

Finding the Fourth Proportional to 130,740.58, 195,938.58 and 51,811.78

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Solution

The fourth proportional to 130,740.58, 195,938.58 and 51,811.78 is: 77,649.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,740.58 : 195,938.58 = 51,811.78 : x
  2. Step 2: Convert to fraction form
    130,740.58/195,938.58 = 51,811.78/x
  3. Step 3: Cross multiply
    130,740.58x = 195,938.58 × 51,811.78
  4. Step 4: Simplify right side
    130,740.58x = 10,151,926,600.47
  5. Step 5: Solve for x
    x = 10,151,926,600.47/130,740.58
  6. Step 6: Final answer
    x = 77,649.39

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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.