Home / 143,617.40-215,292.13-48,782.71

Finding the Fourth Proportional to 143,617.40, 215,292.13 and 48,782.71

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Solution

The fourth proportional to 143,617.40, 215,292.13 and 48,782.71 is: 73,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,617.40 : 215,292.13 = 48,782.71 : x
  2. Step 2: Convert to fraction form
    143,617.40/215,292.13 = 48,782.71/x
  3. Step 3: Cross multiply
    143,617.40x = 215,292.13 × 48,782.71
  4. Step 4: Simplify right side
    143,617.40x = 10,502,532,479.21
  5. Step 5: Solve for x
    x = 10,502,532,479.21/143,617.40
  6. Step 6: Final answer
    x = 73,128.55

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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.