Home / 134,602.50-185,751.45-78,046.68

Finding the Fourth Proportional to 134,602.50, 185,751.45 and 78,046.68

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Solution

The fourth proportional to 134,602.50, 185,751.45 and 78,046.68 is: 107,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,602.50 : 185,751.45 = 78,046.68 : x
  2. Step 2: Convert to fraction form
    134,602.50/185,751.45 = 78,046.68/x
  3. Step 3: Cross multiply
    134,602.50x = 185,751.45 × 78,046.68
  4. Step 4: Simplify right side
    134,602.50x = 14,497,283,977.69
  5. Step 5: Solve for x
    x = 14,497,283,977.69/134,602.50
  6. Step 6: Final answer
    x = 107,704.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.