Home / 209,545.03-289,172.69-118,900.75

Finding the Fourth Proportional to 209,545.03, 289,172.69 and 118,900.75

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Solution

The fourth proportional to 209,545.03, 289,172.69 and 118,900.75 is: 164,083.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,545.03 : 289,172.69 = 118,900.75 : x
  2. Step 2: Convert to fraction form
    209,545.03/289,172.69 = 118,900.75/x
  3. Step 3: Cross multiply
    209,545.03x = 289,172.69 × 118,900.75
  4. Step 4: Simplify right side
    209,545.03x = 34,382,848,274.65
  5. Step 5: Solve for x
    x = 34,382,848,274.65/209,545.03
  6. Step 6: Final answer
    x = 164,083.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.