Home / 142,811.94-197,075.52-79,155.66

Finding the Fourth Proportional to 142,811.94, 197,075.52 and 79,155.66

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Solution

The fourth proportional to 142,811.94, 197,075.52 and 79,155.66 is: 109,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,811.94 : 197,075.52 = 79,155.66 : x
  2. Step 2: Convert to fraction form
    142,811.94/197,075.52 = 79,155.66/x
  3. Step 3: Cross multiply
    142,811.94x = 197,075.52 × 79,155.66
  4. Step 4: Simplify right side
    142,811.94x = 15,599,642,855.44
  5. Step 5: Solve for x
    x = 15,599,642,855.44/142,811.94
  6. Step 6: Final answer
    x = 109,232.06

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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.