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Finding the Fourth Proportional to 159,225.84, 219,739.68 and 91,250.64

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Solution

The fourth proportional to 159,225.84, 219,739.68 and 91,250.64 is: 125,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,225.84 : 219,739.68 = 91,250.64 : x
  2. Step 2: Convert to fraction form
    159,225.84/219,739.68 = 91,250.64/x
  3. Step 3: Cross multiply
    159,225.84x = 219,739.68 × 91,250.64
  4. Step 4: Simplify right side
    159,225.84x = 20,051,386,433.40
  5. Step 5: Solve for x
    x = 20,051,386,433.40/159,225.84
  6. Step 6: Final answer
    x = 125,930.48

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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.