Home / 118,577.07-163,678.05-73,289.79

Finding the Fourth Proportional to 118,577.07, 163,678.05 and 73,289.79

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Solution

The fourth proportional to 118,577.07, 163,678.05 and 73,289.79 is: 101,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,577.07 : 163,678.05 = 73,289.79 : x
  2. Step 2: Convert to fraction form
    118,577.07/163,678.05 = 73,289.79/x
  3. Step 3: Cross multiply
    118,577.07x = 163,678.05 × 73,289.79
  4. Step 4: Simplify right side
    118,577.07x = 11,995,929,912.11
  5. Step 5: Solve for x
    x = 11,995,929,912.11/118,577.07
  6. Step 6: Final answer
    x = 101,165.68

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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.