Home / 155,389.46-214,359.82-98,099.78

Finding the Fourth Proportional to 155,389.46, 214,359.82 and 98,099.78

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Solution

The fourth proportional to 155,389.46, 214,359.82 and 98,099.78 is: 135,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,389.46 : 214,359.82 = 98,099.78 : x
  2. Step 2: Convert to fraction form
    155,389.46/214,359.82 = 98,099.78/x
  3. Step 3: Cross multiply
    155,389.46x = 214,359.82 × 98,099.78
  4. Step 4: Simplify right side
    155,389.46x = 21,028,649,865.79
  5. Step 5: Solve for x
    x = 21,028,649,865.79/155,389.46
  6. Step 6: Final answer
    x = 135,328.68

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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.