Home / 313,761.36-470,637.96-77,106.12

Finding the Fourth Proportional to 313,761.36, 470,637.96 and 77,106.12

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Solution

The fourth proportional to 313,761.36, 470,637.96 and 77,106.12 is: 115,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,761.36 : 470,637.96 = 77,106.12 : x
  2. Step 2: Convert to fraction form
    313,761.36/470,637.96 = 77,106.12/x
  3. Step 3: Cross multiply
    313,761.36x = 470,637.96 × 77,106.12
  4. Step 4: Simplify right side
    313,761.36x = 36,289,067,020.32
  5. Step 5: Solve for x
    x = 36,289,067,020.32/313,761.36
  6. Step 6: Final answer
    x = 115,658.18

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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.