Home / 130,067.08-179,491.94-72,706.39

Finding the Fourth Proportional to 130,067.08, 179,491.94 and 72,706.39

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Solution

The fourth proportional to 130,067.08, 179,491.94 and 72,706.39 is: 100,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,067.08 : 179,491.94 = 72,706.39 : x
  2. Step 2: Convert to fraction form
    130,067.08/179,491.94 = 72,706.39/x
  3. Step 3: Cross multiply
    130,067.08x = 179,491.94 × 72,706.39
  4. Step 4: Simplify right side
    130,067.08x = 13,050,210,991.50
  5. Step 5: Solve for x
    x = 13,050,210,991.50/130,067.08
  6. Step 6: Final answer
    x = 100,334.47

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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.