Home / 142,828.45-197,114.93-79,185.13

Finding the Fourth Proportional to 142,828.45, 197,114.93 and 79,185.13

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Solution

The fourth proportional to 142,828.45, 197,114.93 and 79,185.13 is: 109,281.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,828.45 : 197,114.93 = 79,185.13 : x
  2. Step 2: Convert to fraction form
    142,828.45/197,114.93 = 79,185.13/x
  3. Step 3: Cross multiply
    142,828.45x = 197,114.93 × 79,185.13
  4. Step 4: Simplify right side
    142,828.45x = 15,608,571,356.99
  5. Step 5: Solve for x
    x = 15,608,571,356.99/142,828.45
  6. Step 6: Final answer
    x = 109,281.95

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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.