Home / 130,311.75-179,829-73,723.13

Finding the Fourth Proportional to 130,311.75, 179,829 and 73,723.13

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Solution

The fourth proportional to 130,311.75, 179,829 and 73,723.13 is: 101,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,311.75 : 179,829 = 73,723.13 : x
  2. Step 2: Convert to fraction form
    130,311.75/179,829 = 73,723.13/x
  3. Step 3: Cross multiply
    130,311.75x = 179,829 × 73,723.13
  4. Step 4: Simplify right side
    130,311.75x = 13,257,555,845.63
  5. Step 5: Solve for x
    x = 13,257,555,845.63/130,311.75
  6. Step 6: Final answer
    x = 101,737.23

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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.