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Finding the Fourth Proportional to 143,417.96, 197,893.50 and 79,754.12

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Solution

The fourth proportional to 143,417.96, 197,893.50 and 79,754.12 is: 110,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,417.96 : 197,893.50 = 79,754.12 : x
  2. Step 2: Convert to fraction form
    143,417.96/197,893.50 = 79,754.12/x
  3. Step 3: Cross multiply
    143,417.96x = 197,893.50 × 79,754.12
  4. Step 4: Simplify right side
    143,417.96x = 15,782,821,946.22
  5. Step 5: Solve for x
    x = 15,782,821,946.22/143,417.96
  6. Step 6: Final answer
    x = 110,047.74

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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.