Home / 143,137.18-197,525.54-79,473.34

Finding the Fourth Proportional to 143,137.18, 197,525.54 and 79,473.34

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Solution

The fourth proportional to 143,137.18, 197,525.54 and 79,473.34 is: 109,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,137.18 : 197,525.54 = 79,473.34 : x
  2. Step 2: Convert to fraction form
    143,137.18/197,525.54 = 79,473.34/x
  3. Step 3: Cross multiply
    143,137.18x = 197,525.54 × 79,473.34
  4. Step 4: Simplify right side
    143,137.18x = 15,698,014,399.10
  5. Step 5: Solve for x
    x = 15,698,014,399.10/143,137.18
  6. Step 6: Final answer
    x = 109,671.12

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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.