Home / 118,638.70-163,721.41-64,923.74

Finding the Fourth Proportional to 118,638.70, 163,721.41 and 64,923.74

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Solution

The fourth proportional to 118,638.70, 163,721.41 and 64,923.74 is: 89,594.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,638.70 : 163,721.41 = 64,923.74 : x
  2. Step 2: Convert to fraction form
    118,638.70/163,721.41 = 64,923.74/x
  3. Step 3: Cross multiply
    118,638.70x = 163,721.41 × 64,923.74
  4. Step 4: Simplify right side
    118,638.70x = 10,629,406,255.27
  5. Step 5: Solve for x
    x = 10,629,406,255.27/118,638.70
  6. Step 6: Final answer
    x = 89,594.76

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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.