Home / 100,525.52-138,772.44-58,075.85

Finding the Fourth Proportional to 100,525.52, 138,772.44 and 58,075.85

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Solution

The fourth proportional to 100,525.52, 138,772.44 and 58,075.85 is: 80,171.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,525.52 : 138,772.44 = 58,075.85 : x
  2. Step 2: Convert to fraction form
    100,525.52/138,772.44 = 58,075.85/x
  3. Step 3: Cross multiply
    100,525.52x = 138,772.44 × 58,075.85
  4. Step 4: Simplify right side
    100,525.52x = 8,059,326,715.71
  5. Step 5: Solve for x
    x = 8,059,326,715.71/100,525.52
  6. Step 6: Final answer
    x = 80,171.95

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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.