Home / 149,564.55-206,399.70-81,582.98

Finding the Fourth Proportional to 149,564.55, 206,399.70 and 81,582.98

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Solution

The fourth proportional to 149,564.55, 206,399.70 and 81,582.98 is: 112,584.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,564.55 : 206,399.70 = 81,582.98 : x
  2. Step 2: Convert to fraction form
    149,564.55/206,399.70 = 81,582.98/x
  3. Step 3: Cross multiply
    149,564.55x = 206,399.70 × 81,582.98
  4. Step 4: Simplify right side
    149,564.55x = 16,838,701,565.11
  5. Step 5: Solve for x
    x = 16,838,701,565.11/149,564.55
  6. Step 6: Final answer
    x = 112,584.84

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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.