Home / 143,851.05-215,886.74-101,640.33

Finding the Fourth Proportional to 143,851.05, 215,886.74 and 101,640.33

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Solution

The fourth proportional to 143,851.05, 215,886.74 and 101,640.33 is: 152,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,851.05 : 215,886.74 = 101,640.33 : x
  2. Step 2: Convert to fraction form
    143,851.05/215,886.74 = 101,640.33/x
  3. Step 3: Cross multiply
    143,851.05x = 215,886.74 × 101,640.33
  4. Step 4: Simplify right side
    143,851.05x = 21,942,798,988.02
  5. Step 5: Solve for x
    x = 21,942,798,988.02/143,851.05
  6. Step 6: Final answer
    x = 152,538.33

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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.