Home / 101,749.08-140,411.07-56,426.97

Finding the Fourth Proportional to 101,749.08, 140,411.07 and 56,426.97

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Solution

The fourth proportional to 101,749.08, 140,411.07 and 56,426.97 is: 77,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,749.08 : 140,411.07 = 56,426.97 : x
  2. Step 2: Convert to fraction form
    101,749.08/140,411.07 = 56,426.97/x
  3. Step 3: Cross multiply
    101,749.08x = 140,411.07 × 56,426.97
  4. Step 4: Simplify right side
    101,749.08x = 7,922,971,234.56
  5. Step 5: Solve for x
    x = 7,922,971,234.56/101,749.08
  6. Step 6: Final answer
    x = 77,867.74

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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.