Home / 143,872.10-215,419.35-112,768.10

Finding the Fourth Proportional to 143,872.10, 215,419.35 and 112,768.10

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Solution

The fourth proportional to 143,872.10, 215,419.35 and 112,768.10 is: 168,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,872.10 : 215,419.35 = 112,768.10 : x
  2. Step 2: Convert to fraction form
    143,872.10/215,419.35 = 112,768.10/x
  3. Step 3: Cross multiply
    143,872.10x = 215,419.35 × 112,768.10
  4. Step 4: Simplify right side
    143,872.10x = 24,292,430,802.74
  5. Step 5: Solve for x
    x = 24,292,430,802.74/143,872.10
  6. Step 6: Final answer
    x = 168,847.41

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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.