Home / 149,814.96-206,741.04-86,151.36

Finding the Fourth Proportional to 149,814.96, 206,741.04 and 86,151.36

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Solution

The fourth proportional to 149,814.96, 206,741.04 and 86,151.36 is: 118,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,814.96 : 206,741.04 = 86,151.36 : x
  2. Step 2: Convert to fraction form
    149,814.96/206,741.04 = 86,151.36/x
  3. Step 3: Cross multiply
    149,814.96x = 206,741.04 × 86,151.36
  4. Step 4: Simplify right side
    149,814.96x = 17,811,021,763.81
  5. Step 5: Solve for x
    x = 17,811,021,763.81/149,814.96
  6. Step 6: Final answer
    x = 118,886.80

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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.