Home / 118,359.05-163,335.96-64,644.30

Finding the Fourth Proportional to 118,359.05, 163,335.96 and 64,644.30

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Solution

The fourth proportional to 118,359.05, 163,335.96 and 64,644.30 is: 89,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,359.05 : 163,335.96 = 64,644.30 : x
  2. Step 2: Convert to fraction form
    118,359.05/163,335.96 = 64,644.30/x
  3. Step 3: Cross multiply
    118,359.05x = 163,335.96 × 64,644.30
  4. Step 4: Simplify right side
    118,359.05x = 10,558,738,799.03
  5. Step 5: Solve for x
    x = 10,558,738,799.03/118,359.05
  6. Step 6: Final answer
    x = 89,209.40

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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.