Home / 102,730.82-141,784.80-62,457.20

Finding the Fourth Proportional to 102,730.82, 141,784.80 and 62,457.20

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Solution

The fourth proportional to 102,730.82, 141,784.80 and 62,457.20 is: 86,200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,730.82 : 141,784.80 = 62,457.20 : x
  2. Step 2: Convert to fraction form
    102,730.82/141,784.80 = 62,457.20/x
  3. Step 3: Cross multiply
    102,730.82x = 141,784.80 × 62,457.20
  4. Step 4: Simplify right side
    102,730.82x = 8,855,481,610.56
  5. Step 5: Solve for x
    x = 8,855,481,610.56/102,730.82
  6. Step 6: Final answer
    x = 86,200.83

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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.