Home / 144,834.83-217,312.27-78,196.64

Finding the Fourth Proportional to 144,834.83, 217,312.27 and 78,196.64

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Solution

The fourth proportional to 144,834.83, 217,312.27 and 78,196.64 is: 117,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,834.83 : 217,312.27 = 78,196.64 : x
  2. Step 2: Convert to fraction form
    144,834.83/217,312.27 = 78,196.64/x
  3. Step 3: Cross multiply
    144,834.83x = 217,312.27 × 78,196.64
  4. Step 4: Simplify right side
    144,834.83x = 16,993,089,285.10
  5. Step 5: Solve for x
    x = 16,993,089,285.10/144,834.83
  6. Step 6: Final answer
    x = 117,327.36

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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.