Home / 131,864.14-181,968.74-77,415.41

Finding the Fourth Proportional to 131,864.14, 181,968.74 and 77,415.41

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Solution

The fourth proportional to 131,864.14, 181,968.74 and 77,415.41 is: 106,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,864.14 : 181,968.74 = 77,415.41 : x
  2. Step 2: Convert to fraction form
    131,864.14/181,968.74 = 77,415.41/x
  3. Step 3: Cross multiply
    131,864.14x = 181,968.74 × 77,415.41
  4. Step 4: Simplify right side
    131,864.14x = 14,087,185,011.85
  5. Step 5: Solve for x
    x = 14,087,185,011.85/131,864.14
  6. Step 6: Final answer
    x = 106,831.06

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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.