Home / 199,968.61-299,953.22-80,079.55

Finding the Fourth Proportional to 199,968.61, 299,953.22 and 80,079.55

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Solution

The fourth proportional to 199,968.61, 299,953.22 and 80,079.55 is: 120,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,968.61 : 299,953.22 = 80,079.55 : x
  2. Step 2: Convert to fraction form
    199,968.61/299,953.22 = 80,079.55/x
  3. Step 3: Cross multiply
    199,968.61x = 299,953.22 × 80,079.55
  4. Step 4: Simplify right side
    199,968.61x = 24,020,118,878.65
  5. Step 5: Solve for x
    x = 24,020,118,878.65/199,968.61
  6. Step 6: Final answer
    x = 120,119.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.