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Finding the Fourth Proportional to 164,420.76, 226,919.78 and 136,776.58

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Solution

The fourth proportional to 164,420.76, 226,919.78 and 136,776.58 is: 188,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,420.76 : 226,919.78 = 136,776.58 : x
  2. Step 2: Convert to fraction form
    164,420.76/226,919.78 = 136,776.58/x
  3. Step 3: Cross multiply
    164,420.76x = 226,919.78 × 136,776.58
  4. Step 4: Simplify right side
    164,420.76x = 31,037,311,442.75
  5. Step 5: Solve for x
    x = 31,037,311,442.75/164,420.76
  6. Step 6: Final answer
    x = 188,767.60

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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.