Home / 118,645.20-163,730.37-64,930.23

Finding the Fourth Proportional to 118,645.20, 163,730.37 and 64,930.23

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Solution

The fourth proportional to 118,645.20, 163,730.37 and 64,930.23 is: 89,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,645.20 : 163,730.37 = 64,930.23 : x
  2. Step 2: Convert to fraction form
    118,645.20/163,730.37 = 64,930.23/x
  3. Step 3: Cross multiply
    118,645.20x = 163,730.37 × 64,930.23
  4. Step 4: Simplify right side
    118,645.20x = 10,631,050,582.09
  5. Step 5: Solve for x
    x = 10,631,050,582.09/118,645.20
  6. Step 6: Final answer
    x = 89,603.71

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1.5x scale

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.