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Finding the Fourth Proportional to 101,713.01, 140,378.49 and 56,401.07

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Solution

The fourth proportional to 101,713.01, 140,378.49 and 56,401.07 is: 77,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,713.01 : 140,378.49 = 56,401.07 : x
  2. Step 2: Convert to fraction form
    101,713.01/140,378.49 = 56,401.07/x
  3. Step 3: Cross multiply
    101,713.01x = 140,378.49 × 56,401.07
  4. Step 4: Simplify right side
    101,713.01x = 7,917,496,758.98
  5. Step 5: Solve for x
    x = 7,917,496,758.98/101,713.01
  6. Step 6: Final answer
    x = 77,841.53

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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.