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Finding the Fourth Proportional to 102,253.88, 153,304.28 and 68,880.28

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Solution

The fourth proportional to 102,253.88, 153,304.28 and 68,880.28 is: 103,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,253.88 : 153,304.28 = 68,880.28 : x
  2. Step 2: Convert to fraction form
    102,253.88/153,304.28 = 68,880.28/x
  3. Step 3: Cross multiply
    102,253.88x = 153,304.28 × 68,880.28
  4. Step 4: Simplify right side
    102,253.88x = 10,559,641,731.60
  5. Step 5: Solve for x
    x = 10,559,641,731.60/102,253.88
  6. Step 6: Final answer
    x = 103,268.86

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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.