Home / 143,226.48-197,643.12-79,564.32

Finding the Fourth Proportional to 143,226.48, 197,643.12 and 79,564.32

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Solution

The fourth proportional to 143,226.48, 197,643.12 and 79,564.32 is: 109,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,226.48 : 197,643.12 = 79,564.32 : x
  2. Step 2: Convert to fraction form
    143,226.48/197,643.12 = 79,564.32/x
  3. Step 3: Cross multiply
    143,226.48x = 197,643.12 × 79,564.32
  4. Step 4: Simplify right side
    143,226.48x = 15,725,340,445.48
  5. Step 5: Solve for x
    x = 15,725,340,445.48/143,226.48
  6. Step 6: Final answer
    x = 109,793.53

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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.