Home / 118,649.40-163,736.24-64,934.39

Finding the Fourth Proportional to 118,649.40, 163,736.24 and 64,934.39

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Solution

The fourth proportional to 118,649.40, 163,736.24 and 64,934.39 is: 89,609.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,649.40 : 163,736.24 = 64,934.39 : x
  2. Step 2: Convert to fraction form
    118,649.40/163,736.24 = 64,934.39/x
  3. Step 3: Cross multiply
    118,649.40x = 163,736.24 × 64,934.39
  4. Step 4: Simplify right side
    118,649.40x = 10,632,111,721.94
  5. Step 5: Solve for x
    x = 10,632,111,721.94/118,649.40
  6. Step 6: Final answer
    x = 89,609.49

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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.