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Finding the Fourth Proportional to 98,843.40, 148,265.10 and 54,447.30

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Solution

The fourth proportional to 98,843.40, 148,265.10 and 54,447.30 is: 81,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,843.40 : 148,265.10 = 54,447.30 : x
  2. Step 2: Convert to fraction form
    98,843.40/148,265.10 = 54,447.30/x
  3. Step 3: Cross multiply
    98,843.40x = 148,265.10 × 54,447.30
  4. Step 4: Simplify right side
    98,843.40x = 8,072,634,379.23
  5. Step 5: Solve for x
    x = 8,072,634,379.23/98,843.40
  6. Step 6: Final answer
    x = 81,670.95

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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.