Home / 149,379.44-206,140.96-81,397.01

Finding the Fourth Proportional to 149,379.44, 206,140.96 and 81,397.01

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Solution

The fourth proportional to 149,379.44, 206,140.96 and 81,397.01 is: 112,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,379.44 : 206,140.96 = 81,397.01 : x
  2. Step 2: Convert to fraction form
    149,379.44/206,140.96 = 81,397.01/x
  3. Step 3: Cross multiply
    149,379.44x = 206,140.96 × 81,397.01
  4. Step 4: Simplify right side
    149,379.44x = 16,779,256,955.32
  5. Step 5: Solve for x
    x = 16,779,256,955.32/149,379.44
  6. Step 6: Final answer
    x = 112,326.41

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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.