Home / 137,971.24-206,851.89-71,368.96

Finding the Fourth Proportional to 137,971.24, 206,851.89 and 71,368.96

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Solution

The fourth proportional to 137,971.24, 206,851.89 and 71,368.96 is: 106,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,971.24 : 206,851.89 = 71,368.96 : x
  2. Step 2: Convert to fraction form
    137,971.24/206,851.89 = 71,368.96/x
  3. Step 3: Cross multiply
    137,971.24x = 206,851.89 × 71,368.96
  4. Step 4: Simplify right side
    137,971.24x = 14,762,804,263.33
  5. Step 5: Solve for x
    x = 14,762,804,263.33/137,971.24
  6. Step 6: Final answer
    x = 106,999.14

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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.