Home / 120,322.17-180,429.94-64,151.81

Finding the Fourth Proportional to 120,322.17, 180,429.94 and 64,151.81

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Solution

The fourth proportional to 120,322.17, 180,429.94 and 64,151.81 is: 96,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,322.17 : 180,429.94 = 64,151.81 : x
  2. Step 2: Convert to fraction form
    120,322.17/180,429.94 = 64,151.81/x
  3. Step 3: Cross multiply
    120,322.17x = 180,429.94 × 64,151.81
  4. Step 4: Simplify right side
    120,322.17x = 11,574,907,083.84
  5. Step 5: Solve for x
    x = 11,574,907,083.84/120,322.17
  6. Step 6: Final answer
    x = 96,199.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.