Home / 149,205.36-205,890.84-85,528.56

Finding the Fourth Proportional to 149,205.36, 205,890.84 and 85,528.56

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Solution

The fourth proportional to 149,205.36, 205,890.84 and 85,528.56 is: 118,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,205.36 : 205,890.84 = 85,528.56 : x
  2. Step 2: Convert to fraction form
    149,205.36/205,890.84 = 85,528.56/x
  3. Step 3: Cross multiply
    149,205.36x = 205,890.84 × 85,528.56
  4. Step 4: Simplify right side
    149,205.36x = 17,609,547,062.39
  5. Step 5: Solve for x
    x = 17,609,547,062.39/149,205.36
  6. Step 6: Final answer
    x = 118,022.21

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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.