Home / 102,126.61-140,835.77-68,136.48

Finding the Fourth Proportional to 102,126.61, 140,835.77 and 68,136.48

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Solution

The fourth proportional to 102,126.61, 140,835.77 and 68,136.48 is: 93,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.61 : 140,835.77 = 68,136.48 : x
  2. Step 2: Convert to fraction form
    102,126.61/140,835.77 = 68,136.48/x
  3. Step 3: Cross multiply
    102,126.61x = 140,835.77 × 68,136.48
  4. Step 4: Simplify right side
    102,126.61x = 9,596,053,285.21
  5. Step 5: Solve for x
    x = 9,596,053,285.21/102,126.61
  6. Step 6: Final answer
    x = 93,962.32

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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.