Home / 138,913.99-208,383.26-39,075.01

Finding the Fourth Proportional to 138,913.99, 208,383.26 and 39,075.01

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Solution

The fourth proportional to 138,913.99, 208,383.26 and 39,075.01 is: 58,615.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,913.99 : 208,383.26 = 39,075.01 : x
  2. Step 2: Convert to fraction form
    138,913.99/208,383.26 = 39,075.01/x
  3. Step 3: Cross multiply
    138,913.99x = 208,383.26 × 39,075.01
  4. Step 4: Simplify right side
    138,913.99x = 8,142,577,968.33
  5. Step 5: Solve for x
    x = 8,142,577,968.33/138,913.99
  6. Step 6: Final answer
    x = 58,615.97

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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.