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Finding the Fourth Proportional to 101,182.64, 139,632.08 and 55,860.66

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Solution

The fourth proportional to 101,182.64, 139,632.08 and 55,860.66 is: 77,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,182.64 : 139,632.08 = 55,860.66 : x
  2. Step 2: Convert to fraction form
    101,182.64/139,632.08 = 55,860.66/x
  3. Step 3: Cross multiply
    101,182.64x = 139,632.08 × 55,860.66
  4. Step 4: Simplify right side
    101,182.64x = 7,799,939,866.67
  5. Step 5: Solve for x
    x = 7,799,939,866.67/101,182.64
  6. Step 6: Final answer
    x = 77,087.73

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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.