Home / 114,771.21-172,184.58-39,880.50

Finding the Fourth Proportional to 114,771.21, 172,184.58 and 39,880.50

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Solution

The fourth proportional to 114,771.21, 172,184.58 and 39,880.50 is: 59,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,771.21 : 172,184.58 = 39,880.50 : x
  2. Step 2: Convert to fraction form
    114,771.21/172,184.58 = 39,880.50/x
  3. Step 3: Cross multiply
    114,771.21x = 172,184.58 × 39,880.50
  4. Step 4: Simplify right side
    114,771.21x = 6,866,807,142.69
  5. Step 5: Solve for x
    x = 6,866,807,142.69/114,771.21
  6. Step 6: Final answer
    x = 59,830.40

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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.