Home / 120,927.87-181,391.23-30,970.40

Finding the Fourth Proportional to 120,927.87, 181,391.23 and 30,970.40

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Solution

The fourth proportional to 120,927.87, 181,391.23 and 30,970.40 is: 46,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,927.87 : 181,391.23 = 30,970.40 : x
  2. Step 2: Convert to fraction form
    120,927.87/181,391.23 = 30,970.40/x
  3. Step 3: Cross multiply
    120,927.87x = 181,391.23 × 30,970.40
  4. Step 4: Simplify right side
    120,927.87x = 5,617,759,665.75
  5. Step 5: Solve for x
    x = 5,617,759,665.75/120,927.87
  6. Step 6: Final answer
    x = 46,455.46

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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.