Home / 117,234.27-161,820.08-74,792.77

Finding the Fourth Proportional to 117,234.27, 161,820.08 and 74,792.77

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Solution

The fourth proportional to 117,234.27, 161,820.08 and 74,792.77 is: 103,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,234.27 : 161,820.08 = 74,792.77 : x
  2. Step 2: Convert to fraction form
    117,234.27/161,820.08 = 74,792.77/x
  3. Step 3: Cross multiply
    117,234.27x = 161,820.08 × 74,792.77
  4. Step 4: Simplify right side
    117,234.27x = 12,102,971,526.78
  5. Step 5: Solve for x
    x = 12,102,971,526.78/117,234.27
  6. Step 6: Final answer
    x = 103,237.49

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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.