Home / 143,542.48-197,883.32-100,968.88

Finding the Fourth Proportional to 143,542.48, 197,883.32 and 100,968.88

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Solution

The fourth proportional to 143,542.48, 197,883.32 and 100,968.88 is: 139,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,542.48 : 197,883.32 = 100,968.88 : x
  2. Step 2: Convert to fraction form
    143,542.48/197,883.32 = 100,968.88/x
  3. Step 3: Cross multiply
    143,542.48x = 197,883.32 × 100,968.88
  4. Step 4: Simplify right side
    143,542.48x = 19,980,057,191.08
  5. Step 5: Solve for x
    x = 19,980,057,191.08/143,542.48
  6. Step 6: Final answer
    x = 139,192.64

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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.