Home / 143,521.10-215,281.45-48,761.12

Finding the Fourth Proportional to 143,521.10, 215,281.45 and 48,761.12

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Solution

The fourth proportional to 143,521.10, 215,281.45 and 48,761.12 is: 73,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,521.10 : 215,281.45 = 48,761.12 : x
  2. Step 2: Convert to fraction form
    143,521.10/215,281.45 = 48,761.12/x
  3. Step 3: Cross multiply
    143,521.10x = 215,281.45 × 48,761.12
  4. Step 4: Simplify right side
    143,521.10x = 10,497,364,942.10
  5. Step 5: Solve for x
    x = 10,497,364,942.10/143,521.10
  6. Step 6: Final answer
    x = 73,141.61

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1.5x scale

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.