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Finding the Fourth Proportional to 101,260.20, 139,735.50 and 55,937.40

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Solution

The fourth proportional to 101,260.20, 139,735.50 and 55,937.40 is: 77,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,260.20 : 139,735.50 = 55,937.40 : x
  2. Step 2: Convert to fraction form
    101,260.20/139,735.50 = 55,937.40/x
  3. Step 3: Cross multiply
    101,260.20x = 139,735.50 × 55,937.40
  4. Step 4: Simplify right side
    101,260.20x = 7,816,440,557.70
  5. Step 5: Solve for x
    x = 7,816,440,557.70/101,260.20
  6. Step 6: Final answer
    x = 77,191.64

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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.