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Finding the Fourth Proportional to 109,007.68, 150,444.04 and 61,260

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Solution

The fourth proportional to 109,007.68, 150,444.04 and 61,260 is: 84,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,007.68 : 150,444.04 = 61,260 : x
  2. Step 2: Convert to fraction form
    109,007.68/150,444.04 = 61,260/x
  3. Step 3: Cross multiply
    109,007.68x = 150,444.04 × 61,260
  4. Step 4: Simplify right side
    109,007.68x = 9,216,201,890.40
  5. Step 5: Solve for x
    x = 9,216,201,890.40/109,007.68
  6. Step 6: Final answer
    x = 84,546.35

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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.