Home / 102,966.34-142,085.70-57,633.94

Finding the Fourth Proportional to 102,966.34, 142,085.70 and 57,633.94

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Solution

The fourth proportional to 102,966.34, 142,085.70 and 57,633.94 is: 79,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,966.34 : 142,085.70 = 57,633.94 : x
  2. Step 2: Convert to fraction form
    102,966.34/142,085.70 = 57,633.94/x
  3. Step 3: Cross multiply
    102,966.34x = 142,085.70 × 57,633.94
  4. Step 4: Simplify right side
    102,966.34x = 8,188,958,708.66
  5. Step 5: Solve for x
    x = 8,188,958,708.66/102,966.34
  6. Step 6: Final answer
    x = 79,530.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.