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Finding the Fourth Proportional to 118,908.88, 178,393.02 and 83,916.88

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Solution

The fourth proportional to 118,908.88, 178,393.02 and 83,916.88 is: 125,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,908.88 : 178,393.02 = 83,916.88 : x
  2. Step 2: Convert to fraction form
    118,908.88/178,393.02 = 83,916.88/x
  3. Step 3: Cross multiply
    118,908.88x = 178,393.02 × 83,916.88
  4. Step 4: Simplify right side
    118,908.88x = 14,970,185,652.18
  5. Step 5: Solve for x
    x = 14,970,185,652.18/118,908.88
  6. Step 6: Final answer
    x = 125,896.28

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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.