Home / 143,028.16-214,458.80-43,158.40

Finding the Fourth Proportional to 143,028.16, 214,458.80 and 43,158.40

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Solution

The fourth proportional to 143,028.16, 214,458.80 and 43,158.40 is: 64,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,028.16 : 214,458.80 = 43,158.40 : x
  2. Step 2: Convert to fraction form
    143,028.16/214,458.80 = 43,158.40/x
  3. Step 3: Cross multiply
    143,028.16x = 214,458.80 × 43,158.40
  4. Step 4: Simplify right side
    143,028.16x = 9,255,698,673.92
  5. Step 5: Solve for x
    x = 9,255,698,673.92/143,028.16
  6. Step 6: Final answer
    x = 64,712.42

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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.