Home / 120,545.25-180,830.02-31,804.89

Finding the Fourth Proportional to 120,545.25, 180,830.02 and 31,804.89

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Solution

The fourth proportional to 120,545.25, 180,830.02 and 31,804.89 is: 47,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,545.25 : 180,830.02 = 31,804.89 : x
  2. Step 2: Convert to fraction form
    120,545.25/180,830.02 = 31,804.89/x
  3. Step 3: Cross multiply
    120,545.25x = 180,830.02 × 31,804.89
  4. Step 4: Simplify right side
    120,545.25x = 5,751,278,894.80
  5. Step 5: Solve for x
    x = 5,751,278,894.80/120,545.25
  6. Step 6: Final answer
    x = 47,710.54

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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.