Home / 136,108.02-187,829.24-75,678.01

Finding the Fourth Proportional to 136,108.02, 187,829.24 and 75,678.01

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Solution

The fourth proportional to 136,108.02, 187,829.24 and 75,678.01 is: 104,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,108.02 : 187,829.24 = 75,678.01 : x
  2. Step 2: Convert to fraction form
    136,108.02/187,829.24 = 75,678.01/x
  3. Step 3: Cross multiply
    136,108.02x = 187,829.24 × 75,678.01
  4. Step 4: Simplify right side
    136,108.02x = 14,214,543,103.01
  5. Step 5: Solve for x
    x = 14,214,543,103.01/136,108.02
  6. Step 6: Final answer
    x = 104,435.75

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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.