Home / 143,053.46-197,393.58-85,679.34

Finding the Fourth Proportional to 143,053.46, 197,393.58 and 85,679.34

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Solution

The fourth proportional to 143,053.46, 197,393.58 and 85,679.34 is: 118,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,053.46 : 197,393.58 = 85,679.34 : x
  2. Step 2: Convert to fraction form
    143,053.46/197,393.58 = 85,679.34/x
  3. Step 3: Cross multiply
    143,053.46x = 197,393.58 × 85,679.34
  4. Step 4: Simplify right side
    143,053.46x = 16,912,551,654.64
  5. Step 5: Solve for x
    x = 16,912,551,654.64/143,053.46
  6. Step 6: Final answer
    x = 118,225.39

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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.