Home / 130,136.83-179,585.44-71,995.70

Finding the Fourth Proportional to 130,136.83, 179,585.44 and 71,995.70

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Solution

The fourth proportional to 130,136.83, 179,585.44 and 71,995.70 is: 99,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,136.83 : 179,585.44 = 71,995.70 : x
  2. Step 2: Convert to fraction form
    130,136.83/179,585.44 = 71,995.70/x
  3. Step 3: Cross multiply
    130,136.83x = 179,585.44 × 71,995.70
  4. Step 4: Simplify right side
    130,136.83x = 12,929,379,731.58
  5. Step 5: Solve for x
    x = 12,929,379,731.58/130,136.83
  6. Step 6: Final answer
    x = 99,352.20

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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.