Home / 309,142.09-463,779.65-95,905.72

Finding the Fourth Proportional to 309,142.09, 463,779.65 and 95,905.72

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Solution

The fourth proportional to 309,142.09, 463,779.65 and 95,905.72 is: 143,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,142.09 : 463,779.65 = 95,905.72 : x
  2. Step 2: Convert to fraction form
    309,142.09/463,779.65 = 95,905.72/x
  3. Step 3: Cross multiply
    309,142.09x = 463,779.65 × 95,905.72
  4. Step 4: Simplify right side
    309,142.09x = 44,479,121,254.60
  5. Step 5: Solve for x
    x = 44,479,121,254.60/309,142.09
  6. Step 6: Final answer
    x = 143,879.22

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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.