Home / 143,187.50-197,607.68-79,525.14

Finding the Fourth Proportional to 143,187.50, 197,607.68 and 79,525.14

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Solution

The fourth proportional to 143,187.50, 197,607.68 and 79,525.14 is: 109,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.50 : 197,607.68 = 79,525.14 : x
  2. Step 2: Convert to fraction form
    143,187.50/197,607.68 = 79,525.14/x
  3. Step 3: Cross multiply
    143,187.50x = 197,607.68 × 79,525.14
  4. Step 4: Simplify right side
    143,187.50x = 15,714,778,464.52
  5. Step 5: Solve for x
    x = 15,714,778,464.52/143,187.50
  6. Step 6: Final answer
    x = 109,749.66

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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.