Home / 143,277.08-197,725.46-78,746.94

Finding the Fourth Proportional to 143,277.08, 197,725.46 and 78,746.94

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Solution

The fourth proportional to 143,277.08, 197,725.46 and 78,746.94 is: 108,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,277.08 : 197,725.46 = 78,746.94 : x
  2. Step 2: Convert to fraction form
    143,277.08/197,725.46 = 78,746.94/x
  3. Step 3: Cross multiply
    143,277.08x = 197,725.46 × 78,746.94
  4. Step 4: Simplify right side
    143,277.08x = 15,570,274,541.36
  5. Step 5: Solve for x
    x = 15,570,274,541.36/143,277.08
  6. Step 6: Final answer
    x = 108,672.48

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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.