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Finding the Fourth Proportional to 109,089.75, 150,544.76 and 61,342.68

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Solution

The fourth proportional to 109,089.75, 150,544.76 and 61,342.68 is: 84,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,089.75 : 150,544.76 = 61,342.68 : x
  2. Step 2: Convert to fraction form
    109,089.75/150,544.76 = 61,342.68/x
  3. Step 3: Cross multiply
    109,089.75x = 150,544.76 × 61,342.68
  4. Step 4: Simplify right side
    109,089.75x = 9,234,818,731.64
  5. Step 5: Solve for x
    x = 9,234,818,731.64/109,089.75
  6. Step 6: Final answer
    x = 84,653.40

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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.