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Finding the Fourth Proportional to 142,648.88, 196,951.08 and 88,955.60

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Solution

The fourth proportional to 142,648.88, 196,951.08 and 88,955.60 is: 122,818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,648.88 : 196,951.08 = 88,955.60 : x
  2. Step 2: Convert to fraction form
    142,648.88/196,951.08 = 88,955.60/x
  3. Step 3: Cross multiply
    142,648.88x = 196,951.08 × 88,955.60
  4. Step 4: Simplify right side
    142,648.88x = 17,519,901,492.05
  5. Step 5: Solve for x
    x = 17,519,901,492.05/142,648.88
  6. Step 6: Final answer
    x = 122,818.36

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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.