Home / 143,004.40-197,337.18-79,340.92

Finding the Fourth Proportional to 143,004.40, 197,337.18 and 79,340.92

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Solution

The fourth proportional to 143,004.40, 197,337.18 and 79,340.92 is: 109,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,004.40 : 197,337.18 = 79,340.92 : x
  2. Step 2: Convert to fraction form
    143,004.40/197,337.18 = 79,340.92/x
  3. Step 3: Cross multiply
    143,004.40x = 197,337.18 × 79,340.92
  4. Step 4: Simplify right side
    143,004.40x = 15,656,913,411.41
  5. Step 5: Solve for x
    x = 15,656,913,411.41/143,004.40
  6. Step 6: Final answer
    x = 109,485.54

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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.