Home / 142,106.70-212,974.94-57,768.35

Finding the Fourth Proportional to 142,106.70, 212,974.94 and 57,768.35

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Solution

The fourth proportional to 142,106.70, 212,974.94 and 57,768.35 is: 86,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,106.70 : 212,974.94 = 57,768.35 : x
  2. Step 2: Convert to fraction form
    142,106.70/212,974.94 = 57,768.35/x
  3. Step 3: Cross multiply
    142,106.70x = 212,974.94 × 57,768.35
  4. Step 4: Simplify right side
    142,106.70x = 12,303,210,320.09
  5. Step 5: Solve for x
    x = 12,303,210,320.09/142,106.70
  6. Step 6: Final answer
    x = 86,577.27

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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.