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Finding the Fourth Proportional to 102,377.40, 153,566.10 and 84,662.70

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Solution

The fourth proportional to 102,377.40, 153,566.10 and 84,662.70 is: 126,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,377.40 : 153,566.10 = 84,662.70 : x
  2. Step 2: Convert to fraction form
    102,377.40/153,566.10 = 84,662.70/x
  3. Step 3: Cross multiply
    102,377.40x = 153,566.10 × 84,662.70
  4. Step 4: Simplify right side
    102,377.40x = 13,001,320,654.47
  5. Step 5: Solve for x
    x = 13,001,320,654.47/102,377.40
  6. Step 6: Final answer
    x = 126,994.05

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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.