Home / 153,630.72-231,276.04-138,181.96

Finding the Fourth Proportional to 153,630.72, 231,276.04 and 138,181.96

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Solution

The fourth proportional to 153,630.72, 231,276.04 and 138,181.96 is: 208,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,630.72 : 231,276.04 = 138,181.96 : x
  2. Step 2: Convert to fraction form
    153,630.72/231,276.04 = 138,181.96/x
  3. Step 3: Cross multiply
    153,630.72x = 231,276.04 × 138,181.96
  4. Step 4: Simplify right side
    153,630.72x = 31,958,176,508.24
  5. Step 5: Solve for x
    x = 31,958,176,508.24/153,630.72
  6. Step 6: Final answer
    x = 208,019.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.