Home / 131,853.45-181,954.02-77,404.75

Finding the Fourth Proportional to 131,853.45, 181,954.02 and 77,404.75

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Solution

The fourth proportional to 131,853.45, 181,954.02 and 77,404.75 is: 106,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,853.45 : 181,954.02 = 77,404.75 : x
  2. Step 2: Convert to fraction form
    131,853.45/181,954.02 = 77,404.75/x
  3. Step 3: Cross multiply
    131,853.45x = 181,954.02 × 77,404.75
  4. Step 4: Simplify right side
    131,853.45x = 14,084,105,429.60
  5. Step 5: Solve for x
    x = 14,084,105,429.60/131,853.45
  6. Step 6: Final answer
    x = 106,816.36

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1.5x scale

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.