Home / 143,448.12-197,964.54-83,021.40

Finding the Fourth Proportional to 143,448.12, 197,964.54 and 83,021.40

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Solution

The fourth proportional to 143,448.12, 197,964.54 and 83,021.40 is: 114,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,448.12 : 197,964.54 = 83,021.40 : x
  2. Step 2: Convert to fraction form
    143,448.12/197,964.54 = 83,021.40/x
  3. Step 3: Cross multiply
    143,448.12x = 197,964.54 × 83,021.40
  4. Step 4: Simplify right side
    143,448.12x = 16,435,293,261.16
  5. Step 5: Solve for x
    x = 16,435,293,261.16/143,448.12
  6. Step 6: Final answer
    x = 114,573.08

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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.