Home / 172,821.87-238,477.32-103,931.37

Finding the Fourth Proportional to 172,821.87, 238,477.32 and 103,931.37

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Solution

The fourth proportional to 172,821.87, 238,477.32 and 103,931.37 is: 143,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,821.87 : 238,477.32 = 103,931.37 : x
  2. Step 2: Convert to fraction form
    172,821.87/238,477.32 = 103,931.37/x
  3. Step 3: Cross multiply
    172,821.87x = 238,477.32 × 103,931.37
  4. Step 4: Simplify right side
    172,821.87x = 24,785,274,581.53
  5. Step 5: Solve for x
    x = 24,785,274,581.53/172,821.87
  6. Step 6: Final answer
    x = 143,415.15

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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.