Home / 143,080.75-197,504.45-122,856.40

Finding the Fourth Proportional to 143,080.75, 197,504.45 and 122,856.40

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Solution

The fourth proportional to 143,080.75, 197,504.45 and 122,856.40 is: 169,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,080.75 : 197,504.45 = 122,856.40 : x
  2. Step 2: Convert to fraction form
    143,080.75/197,504.45 = 122,856.40/x
  3. Step 3: Cross multiply
    143,080.75x = 197,504.45 × 122,856.40
  4. Step 4: Simplify right side
    143,080.75x = 24,264,684,109.18
  5. Step 5: Solve for x
    x = 24,264,684,109.18/143,080.75
  6. Step 6: Final answer
    x = 169,587.35

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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.