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Finding the Fourth Proportional to 159,008.94, 219,201.12 and 111,113.64

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Solution

The fourth proportional to 159,008.94, 219,201.12 and 111,113.64 is: 153,175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,008.94 : 219,201.12 = 111,113.64 : x
  2. Step 2: Convert to fraction form
    159,008.94/219,201.12 = 111,113.64/x
  3. Step 3: Cross multiply
    159,008.94x = 219,201.12 × 111,113.64
  4. Step 4: Simplify right side
    159,008.94x = 24,356,234,335.28
  5. Step 5: Solve for x
    x = 24,356,234,335.28/159,008.94
  6. Step 6: Final answer
    x = 153,175.25

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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.