Home / 199,637.85-299,309.16-120,734.55

Finding the Fourth Proportional to 199,637.85, 299,309.16 and 120,734.55

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Solution

The fourth proportional to 199,637.85, 299,309.16 and 120,734.55 is: 181,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,637.85 : 299,309.16 = 120,734.55 : x
  2. Step 2: Convert to fraction form
    199,637.85/299,309.16 = 120,734.55/x
  3. Step 3: Cross multiply
    199,637.85x = 299,309.16 × 120,734.55
  4. Step 4: Simplify right side
    199,637.85x = 36,136,956,743.48
  5. Step 5: Solve for x
    x = 36,136,956,743.48/199,637.85
  6. Step 6: Final answer
    x = 181,012.55

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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.