Home / 158,405.64-236,951.82-120,680.28

Finding the Fourth Proportional to 158,405.64, 236,951.82 and 120,680.28

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Solution

The fourth proportional to 158,405.64, 236,951.82 and 120,680.28 is: 180,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,405.64 : 236,951.82 = 120,680.28 : x
  2. Step 2: Convert to fraction form
    158,405.64/236,951.82 = 120,680.28/x
  3. Step 3: Cross multiply
    158,405.64x = 236,951.82 × 120,680.28
  4. Step 4: Simplify right side
    158,405.64x = 28,595,411,984.11
  5. Step 5: Solve for x
    x = 28,595,411,984.11/158,405.64
  6. Step 6: Final answer
    x = 180,520.16

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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.