Home / 170,019.02-254,919.18-81,270.56

Finding the Fourth Proportional to 170,019.02, 254,919.18 and 81,270.56

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Solution

The fourth proportional to 170,019.02, 254,919.18 and 81,270.56 is: 121,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,019.02 : 254,919.18 = 81,270.56 : x
  2. Step 2: Convert to fraction form
    170,019.02/254,919.18 = 81,270.56/x
  3. Step 3: Cross multiply
    170,019.02x = 254,919.18 × 81,270.56
  4. Step 4: Simplify right side
    170,019.02x = 20,717,424,513.34
  5. Step 5: Solve for x
    x = 20,717,424,513.34/170,019.02
  6. Step 6: Final answer
    x = 121,853.57

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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.