Home / 118,189.88-163,102.03-64,475.11

Finding the Fourth Proportional to 118,189.88, 163,102.03 and 64,475.11

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Solution

The fourth proportional to 118,189.88, 163,102.03 and 64,475.11 is: 88,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,189.88 : 163,102.03 = 64,475.11 : x
  2. Step 2: Convert to fraction form
    118,189.88/163,102.03 = 64,475.11/x
  3. Step 3: Cross multiply
    118,189.88x = 163,102.03 × 64,475.11
  4. Step 4: Simplify right side
    118,189.88x = 10,516,020,756.53
  5. Step 5: Solve for x
    x = 10,516,020,756.53/118,189.88
  6. Step 6: Final answer
    x = 88,975.65

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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.