Home / 198,174.71-297,135.63-130,628.77

Finding the Fourth Proportional to 198,174.71, 297,135.63 and 130,628.77

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Solution

The fourth proportional to 198,174.71, 297,135.63 and 130,628.77 is: 195,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,174.71 : 297,135.63 = 130,628.77 : x
  2. Step 2: Convert to fraction form
    198,174.71/297,135.63 = 130,628.77/x
  3. Step 3: Cross multiply
    198,174.71x = 297,135.63 × 130,628.77
  4. Step 4: Simplify right side
    198,174.71x = 38,814,460,384.40
  5. Step 5: Solve for x
    x = 38,814,460,384.40/198,174.71
  6. Step 6: Final answer
    x = 195,859.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.