Home / 143,540.10-214,921.35-112,436.10

Finding the Fourth Proportional to 143,540.10, 214,921.35 and 112,436.10

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Solution

The fourth proportional to 143,540.10, 214,921.35 and 112,436.10 is: 168,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.10 : 214,921.35 = 112,436.10 : x
  2. Step 2: Convert to fraction form
    143,540.10/214,921.35 = 112,436.10/x
  3. Step 3: Cross multiply
    143,540.10x = 214,921.35 × 112,436.10
  4. Step 4: Simplify right side
    143,540.10x = 24,164,918,400.74
  5. Step 5: Solve for x
    x = 24,164,918,400.74/143,540.10
  6. Step 6: Final answer
    x = 168,349.60

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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.