Home / 118,020.26-162,865.90-64,305.72

Finding the Fourth Proportional to 118,020.26, 162,865.90 and 64,305.72

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Solution

The fourth proportional to 118,020.26, 162,865.90 and 64,305.72 is: 88,740.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,020.26 : 162,865.90 = 64,305.72 : x
  2. Step 2: Convert to fraction form
    118,020.26/162,865.90 = 64,305.72/x
  3. Step 3: Cross multiply
    118,020.26x = 162,865.90 × 64,305.72
  4. Step 4: Simplify right side
    118,020.26x = 10,473,207,827.09
  5. Step 5: Solve for x
    x = 10,473,207,827.09/118,020.26
  6. Step 6: Final answer
    x = 88,740.77

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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.