Home / 101,715.97-140,376.35-56,408.16

Finding the Fourth Proportional to 101,715.97, 140,376.35 and 56,408.16

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Solution

The fourth proportional to 101,715.97, 140,376.35 and 56,408.16 is: 77,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,715.97 : 140,376.35 = 56,408.16 : x
  2. Step 2: Convert to fraction form
    101,715.97/140,376.35 = 56,408.16/x
  3. Step 3: Cross multiply
    101,715.97x = 140,376.35 × 56,408.16
  4. Step 4: Simplify right side
    101,715.97x = 7,918,371,611.02
  5. Step 5: Solve for x
    x = 7,918,371,611.02/101,715.97
  6. Step 6: Final answer
    x = 77,847.87

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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.