Home / 209,947.06-289,718.33-118,063.72

Finding the Fourth Proportional to 209,947.06, 289,718.33 and 118,063.72

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Solution

The fourth proportional to 209,947.06, 289,718.33 and 118,063.72 is: 162,923.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,947.06 : 289,718.33 = 118,063.72 : x
  2. Step 2: Convert to fraction form
    209,947.06/289,718.33 = 118,063.72/x
  3. Step 3: Cross multiply
    209,947.06x = 289,718.33 × 118,063.72
  4. Step 4: Simplify right side
    209,947.06x = 34,205,223,563.82
  5. Step 5: Solve for x
    x = 34,205,223,563.82/209,947.06
  6. Step 6: Final answer
    x = 162,923.09

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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.