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Finding the Fourth Proportional to 128,374.84, 192,506.05 and 60,926.16

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Solution

The fourth proportional to 128,374.84, 192,506.05 and 60,926.16 is: 91,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,374.84 : 192,506.05 = 60,926.16 : x
  2. Step 2: Convert to fraction form
    128,374.84/192,506.05 = 60,926.16/x
  3. Step 3: Cross multiply
    128,374.84x = 192,506.05 × 60,926.16
  4. Step 4: Simplify right side
    128,374.84x = 11,728,654,403.27
  5. Step 5: Solve for x
    x = 11,728,654,403.27/128,374.84
  6. Step 6: Final answer
    x = 91,362.56

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1.5x scale

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.