Home / 101,631.27-140,249.34-56,308.35

Finding the Fourth Proportional to 101,631.27, 140,249.34 and 56,308.35

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Solution

The fourth proportional to 101,631.27, 140,249.34 and 56,308.35 is: 77,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,631.27 : 140,249.34 = 56,308.35 : x
  2. Step 2: Convert to fraction form
    101,631.27/140,249.34 = 56,308.35/x
  3. Step 3: Cross multiply
    101,631.27x = 140,249.34 × 56,308.35
  4. Step 4: Simplify right side
    101,631.27x = 7,897,208,923.99
  5. Step 5: Solve for x
    x = 7,897,208,923.99/101,631.27
  6. Step 6: Final answer
    x = 77,704.52

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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.