Home / 149,988.07-206,986.79-89,547.44

Finding the Fourth Proportional to 149,988.07, 206,986.79 and 89,547.44

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Solution

The fourth proportional to 149,988.07, 206,986.79 and 89,547.44 is: 123,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,988.07 : 206,986.79 = 89,547.44 : x
  2. Step 2: Convert to fraction form
    149,988.07/206,986.79 = 89,547.44/x
  3. Step 3: Cross multiply
    149,988.07x = 206,986.79 × 89,547.44
  4. Step 4: Simplify right side
    149,988.07x = 18,535,136,638.33
  5. Step 5: Solve for x
    x = 18,535,136,638.33/149,988.07
  6. Step 6: Final answer
    x = 123,577.41

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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.