Home / 118,687.03-163,788.39-64,975.52

Finding the Fourth Proportional to 118,687.03, 163,788.39 and 64,975.52

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Solution

The fourth proportional to 118,687.03, 163,788.39 and 64,975.52 is: 89,666.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687.03 : 163,788.39 = 64,975.52 : x
  2. Step 2: Convert to fraction form
    118,687.03/163,788.39 = 64,975.52/x
  3. Step 3: Cross multiply
    118,687.03x = 163,788.39 × 64,975.52
  4. Step 4: Simplify right side
    118,687.03x = 10,642,236,219.68
  5. Step 5: Solve for x
    x = 10,642,236,219.68/118,687.03
  6. Step 6: Final answer
    x = 89,666.38

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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.