Home / 118,682.85-178,026.08-38,720.46

Finding the Fourth Proportional to 118,682.85, 178,026.08 and 38,720.46

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Solution

The fourth proportional to 118,682.85, 178,026.08 and 38,720.46 is: 58,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.85 : 178,026.08 = 38,720.46 : x
  2. Step 2: Convert to fraction form
    118,682.85/178,026.08 = 38,720.46/x
  3. Step 3: Cross multiply
    118,682.85x = 178,026.08 × 38,720.46
  4. Step 4: Simplify right side
    118,682.85x = 6,893,251,515.99
  5. Step 5: Solve for x
    x = 6,893,251,515.99/118,682.85
  6. Step 6: Final answer
    x = 58,081.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.