Home / 118,121.04-163,003.46-64,407.11

Finding the Fourth Proportional to 118,121.04, 163,003.46 and 64,407.11

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Solution

The fourth proportional to 118,121.04, 163,003.46 and 64,407.11 is: 88,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.04 : 163,003.46 = 64,407.11 : x
  2. Step 2: Convert to fraction form
    118,121.04/163,003.46 = 64,407.11/x
  3. Step 3: Cross multiply
    118,121.04x = 163,003.46 × 64,407.11
  4. Step 4: Simplify right side
    118,121.04x = 10,498,580,641.55
  5. Step 5: Solve for x
    x = 10,498,580,641.55/118,121.04
  6. Step 6: Final answer
    x = 88,879.85

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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.