Home / 118,172.91-163,080.83-64,459.85

Finding the Fourth Proportional to 118,172.91, 163,080.83 and 64,459.85

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Solution

The fourth proportional to 118,172.91, 163,080.83 and 64,459.85 is: 88,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,172.91 : 163,080.83 = 64,459.85 : x
  2. Step 2: Convert to fraction form
    118,172.91/163,080.83 = 64,459.85/x
  3. Step 3: Cross multiply
    118,172.91x = 163,080.83 × 64,459.85
  4. Step 4: Simplify right side
    118,172.91x = 10,512,165,925.08
  5. Step 5: Solve for x
    x = 10,512,165,925.08/118,172.91
  6. Step 6: Final answer
    x = 88,955.80

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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.