Home / 118,109.09-162,988.35-64,394.57

Finding the Fourth Proportional to 118,109.09, 162,988.35 and 64,394.57

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Solution

The fourth proportional to 118,109.09, 162,988.35 and 64,394.57 is: 88,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,109.09 : 162,988.35 = 64,394.57 : x
  2. Step 2: Convert to fraction form
    118,109.09/162,988.35 = 64,394.57/x
  3. Step 3: Cross multiply
    118,109.09x = 162,988.35 × 64,394.57
  4. Step 4: Simplify right side
    118,109.09x = 10,495,564,713.26
  5. Step 5: Solve for x
    x = 10,495,564,713.26/118,109.09
  6. Step 6: Final answer
    x = 88,863.31

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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.