Home / 143,261.85-214,935.71-57,828.72

Finding the Fourth Proportional to 143,261.85, 214,935.71 and 57,828.72

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Solution

The fourth proportional to 143,261.85, 214,935.71 and 57,828.72 is: 86,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,261.85 : 214,935.71 = 57,828.72 : x
  2. Step 2: Convert to fraction form
    143,261.85/214,935.71 = 57,828.72/x
  3. Step 3: Cross multiply
    143,261.85x = 214,935.71 × 57,828.72
  4. Step 4: Simplify right side
    143,261.85x = 12,429,457,833.74
  5. Step 5: Solve for x
    x = 12,429,457,833.74/143,261.85
  6. Step 6: Final answer
    x = 86,760.41

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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.