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Finding the Fourth Proportional to 97,853.80, 146,780.70 and 91,244.20

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Solution

The fourth proportional to 97,853.80, 146,780.70 and 91,244.20 is: 136,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,853.80 : 146,780.70 = 91,244.20 : x
  2. Step 2: Convert to fraction form
    97,853.80/146,780.70 = 91,244.20/x
  3. Step 3: Cross multiply
    97,853.80x = 146,780.70 × 91,244.20
  4. Step 4: Simplify right side
    97,853.80x = 13,392,887,546.94
  5. Step 5: Solve for x
    x = 13,392,887,546.94/97,853.80
  6. Step 6: Final answer
    x = 136,866.30

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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.