Home / 120,406.06-180,594.73-31,666.48

Finding the Fourth Proportional to 120,406.06, 180,594.73 and 31,666.48

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Solution

The fourth proportional to 120,406.06, 180,594.73 and 31,666.48 is: 47,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,406.06 : 180,594.73 = 31,666.48 : x
  2. Step 2: Convert to fraction form
    120,406.06/180,594.73 = 31,666.48/x
  3. Step 3: Cross multiply
    120,406.06x = 180,594.73 × 31,666.48
  4. Step 4: Simplify right side
    120,406.06x = 5,718,798,993.75
  5. Step 5: Solve for x
    x = 5,718,798,993.75/120,406.06
  6. Step 6: Final answer
    x = 47,495.94

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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.