Home / 115,137.19-172,455.81-55,848.25

Finding the Fourth Proportional to 115,137.19, 172,455.81 and 55,848.25

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Solution

The fourth proportional to 115,137.19, 172,455.81 and 55,848.25 is: 83,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,137.19 : 172,455.81 = 55,848.25 : x
  2. Step 2: Convert to fraction form
    115,137.19/172,455.81 = 55,848.25/x
  3. Step 3: Cross multiply
    115,137.19x = 172,455.81 × 55,848.25
  4. Step 4: Simplify right side
    115,137.19x = 9,631,355,190.83
  5. Step 5: Solve for x
    x = 9,631,355,190.83/115,137.19
  6. Step 6: Final answer
    x = 83,651.12

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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.