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Finding the Fourth Proportional to 143,680.10, 215,538.02 and 48,903

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Solution

The fourth proportional to 143,680.10, 215,538.02 and 48,903 is: 73,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,680.10 : 215,538.02 = 48,903 : x
  2. Step 2: Convert to fraction form
    143,680.10/215,538.02 = 48,903/x
  3. Step 3: Cross multiply
    143,680.10x = 215,538.02 × 48,903
  4. Step 4: Simplify right side
    143,680.10x = 10,540,455,547.55
  5. Step 5: Solve for x
    x = 10,540,455,547.55/143,680.10
  6. Step 6: Final answer
    x = 73,360.58

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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.