Home / 131,792.10-181,869.21-74,433.77

Finding the Fourth Proportional to 131,792.10, 181,869.21 and 74,433.77

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Solution

The fourth proportional to 131,792.10, 181,869.21 and 74,433.77 is: 102,716.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,792.10 : 181,869.21 = 74,433.77 : x
  2. Step 2: Convert to fraction form
    131,792.10/181,869.21 = 74,433.77/x
  3. Step 3: Cross multiply
    131,792.10x = 181,869.21 × 74,433.77
  4. Step 4: Simplify right side
    131,792.10x = 13,537,211,401.89
  5. Step 5: Solve for x
    x = 13,537,211,401.89/131,792.10
  6. Step 6: Final answer
    x = 102,716.41

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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.