Home / 118,172.13-163,078.04-64,458.30

Finding the Fourth Proportional to 118,172.13, 163,078.04 and 64,458.30

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Solution

The fourth proportional to 118,172.13, 163,078.04 and 64,458.30 is: 88,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,172.13 : 163,078.04 = 64,458.30 : x
  2. Step 2: Convert to fraction form
    118,172.13/163,078.04 = 64,458.30/x
  3. Step 3: Cross multiply
    118,172.13x = 163,078.04 × 64,458.30
  4. Step 4: Simplify right side
    118,172.13x = 10,511,733,386.88
  5. Step 5: Solve for x
    x = 10,511,733,386.88/118,172.13
  6. Step 6: Final answer
    x = 88,952.73

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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.