Home / 142,602.24-196,791.15-78,075.66

Finding the Fourth Proportional to 142,602.24, 196,791.15 and 78,075.66

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Solution

The fourth proportional to 142,602.24, 196,791.15 and 78,075.66 is: 107,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,602.24 : 196,791.15 = 78,075.66 : x
  2. Step 2: Convert to fraction form
    142,602.24/196,791.15 = 78,075.66/x
  3. Step 3: Cross multiply
    142,602.24x = 196,791.15 × 78,075.66
  4. Step 4: Simplify right side
    142,602.24x = 15,364,598,918.41
  5. Step 5: Solve for x
    x = 15,364,598,918.41/142,602.24
  6. Step 6: Final answer
    x = 107,744.44

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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.