Home / 102,977.60-142,121.06-62,714.96

Finding the Fourth Proportional to 102,977.60, 142,121.06 and 62,714.96

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Solution

The fourth proportional to 102,977.60, 142,121.06 and 62,714.96 is: 86,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,977.60 : 142,121.06 = 62,714.96 : x
  2. Step 2: Convert to fraction form
    102,977.60/142,121.06 = 62,714.96/x
  3. Step 3: Cross multiply
    102,977.60x = 142,121.06 × 62,714.96
  4. Step 4: Simplify right side
    102,977.60x = 8,913,116,593.06
  5. Step 5: Solve for x
    x = 8,913,116,593.06/102,977.60
  6. Step 6: Final answer
    x = 86,553.94

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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.