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Finding the Fourth Proportional to 101,707.37, 140,364.45 and 56,399.55

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Solution

The fourth proportional to 101,707.37, 140,364.45 and 56,399.55 is: 77,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,707.37 : 140,364.45 = 56,399.55 : x
  2. Step 2: Convert to fraction form
    101,707.37/140,364.45 = 56,399.55/x
  3. Step 3: Cross multiply
    101,707.37x = 140,364.45 × 56,399.55
  4. Step 4: Simplify right side
    101,707.37x = 7,916,491,534.00
  5. Step 5: Solve for x
    x = 7,916,491,534.00/101,707.37
  6. Step 6: Final answer
    x = 77,835.97

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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.