Home / 118,109.24-162,991.70-64,394.64

Finding the Fourth Proportional to 118,109.24, 162,991.70 and 64,394.64

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Solution

The fourth proportional to 118,109.24, 162,991.70 and 64,394.64 is: 88,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,109.24 : 162,991.70 = 64,394.64 : x
  2. Step 2: Convert to fraction form
    118,109.24/162,991.70 = 64,394.64/x
  3. Step 3: Cross multiply
    118,109.24x = 162,991.70 × 64,394.64
  4. Step 4: Simplify right side
    118,109.24x = 10,495,791,844.49
  5. Step 5: Solve for x
    x = 10,495,791,844.49/118,109.24
  6. Step 6: Final answer
    x = 88,865.12

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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.