Home / 118,638.45-163,721.06-64,923.49

Finding the Fourth Proportional to 118,638.45, 163,721.06 and 64,923.49

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Solution

The fourth proportional to 118,638.45, 163,721.06 and 64,923.49 is: 89,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,638.45 : 163,721.06 = 64,923.49 : x
  2. Step 2: Convert to fraction form
    118,638.45/163,721.06 = 64,923.49/x
  3. Step 3: Cross multiply
    118,638.45x = 163,721.06 × 64,923.49
  4. Step 4: Simplify right side
    118,638.45x = 10,629,342,354.71
  5. Step 5: Solve for x
    x = 10,629,342,354.71/118,638.45
  6. Step 6: Final answer
    x = 89,594.41

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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.