Home / 143,828.32-215,784.56-73,756.64

Finding the Fourth Proportional to 143,828.32, 215,784.56 and 73,756.64

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Solution

The fourth proportional to 143,828.32, 215,784.56 and 73,756.64 is: 110,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,828.32 : 215,784.56 = 73,756.64 : x
  2. Step 2: Convert to fraction form
    143,828.32/215,784.56 = 73,756.64/x
  3. Step 3: Cross multiply
    143,828.32x = 215,784.56 × 73,756.64
  4. Step 4: Simplify right side
    143,828.32x = 15,915,544,109.48
  5. Step 5: Solve for x
    x = 15,915,544,109.48/143,828.32
  6. Step 6: Final answer
    x = 110,656.54

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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.