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Finding the Fourth Proportional to 170,960.85, 256,360.75 and 99,904.01

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Solution

The fourth proportional to 170,960.85, 256,360.75 and 99,904.01 is: 149,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,960.85 : 256,360.75 = 99,904.01 : x
  2. Step 2: Convert to fraction form
    170,960.85/256,360.75 = 99,904.01/x
  3. Step 3: Cross multiply
    170,960.85x = 256,360.75 × 99,904.01
  4. Step 4: Simplify right side
    170,960.85x = 25,611,465,400.04
  5. Step 5: Solve for x
    x = 25,611,465,400.04/170,960.85
  6. Step 6: Final answer
    x = 149,808.95

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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.