Home / 102,134.24-140,887.69-61,287.80

Finding the Fourth Proportional to 102,134.24, 140,887.69 and 61,287.80

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Solution

The fourth proportional to 102,134.24, 140,887.69 and 61,287.80 is: 84,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,134.24 : 140,887.69 = 61,287.80 : x
  2. Step 2: Convert to fraction form
    102,134.24/140,887.69 = 61,287.80/x
  3. Step 3: Cross multiply
    102,134.24x = 140,887.69 × 61,287.80
  4. Step 4: Simplify right side
    102,134.24x = 8,634,696,567.18
  5. Step 5: Solve for x
    x = 8,634,696,567.18/102,134.24
  6. Step 6: Final answer
    x = 84,542.62

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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.