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Finding the Fourth Proportional to 101,813.39, 140,500.33 and 56,490.40

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Solution

The fourth proportional to 101,813.39, 140,500.33 and 56,490.40 is: 77,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,813.39 : 140,500.33 = 56,490.40 : x
  2. Step 2: Convert to fraction form
    101,813.39/140,500.33 = 56,490.40/x
  3. Step 3: Cross multiply
    101,813.39x = 140,500.33 × 56,490.40
  4. Step 4: Simplify right side
    101,813.39x = 7,936,919,244.80
  5. Step 5: Solve for x
    x = 7,936,919,244.80/101,813.39
  6. Step 6: Final answer
    x = 77,955.56

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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.