Home / 143,004.30-197,345.96-79,341.94

Finding the Fourth Proportional to 143,004.30, 197,345.96 and 79,341.94

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Solution

The fourth proportional to 143,004.30, 197,345.96 and 79,341.94 is: 109,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,004.30 : 197,345.96 = 79,341.94 : x
  2. Step 2: Convert to fraction form
    143,004.30/197,345.96 = 79,341.94/x
  3. Step 3: Cross multiply
    143,004.30x = 197,345.96 × 79,341.94
  4. Step 4: Simplify right side
    143,004.30x = 15,657,811,465.07
  5. Step 5: Solve for x
    x = 15,657,811,465.07/143,004.30
  6. Step 6: Final answer
    x = 109,491.90

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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.