Home / 107,145.20-160,559.40-77,625.20

Finding the Fourth Proportional to 107,145.20, 160,559.40 and 77,625.20

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Solution

The fourth proportional to 107,145.20, 160,559.40 and 77,625.20 is: 116,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,145.20 : 160,559.40 = 77,625.20 : x
  2. Step 2: Convert to fraction form
    107,145.20/160,559.40 = 77,625.20/x
  3. Step 3: Cross multiply
    107,145.20x = 160,559.40 × 77,625.20
  4. Step 4: Simplify right side
    107,145.20x = 12,463,455,536.88
  5. Step 5: Solve for x
    x = 12,463,455,536.88/107,145.20
  6. Step 6: Final answer
    x = 116,323.04

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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.