Home / 143,425.58-214,913.59-90,723.74

Finding the Fourth Proportional to 143,425.58, 214,913.59 and 90,723.74

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Solution

The fourth proportional to 143,425.58, 214,913.59 and 90,723.74 is: 135,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,425.58 : 214,913.59 = 90,723.74 : x
  2. Step 2: Convert to fraction form
    143,425.58/214,913.59 = 90,723.74/x
  3. Step 3: Cross multiply
    143,425.58x = 214,913.59 × 90,723.74
  4. Step 4: Simplify right side
    143,425.58x = 19,497,763,360.25
  5. Step 5: Solve for x
    x = 19,497,763,360.25/143,425.58
  6. Step 6: Final answer
    x = 135,943.42

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1.5x scale

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.