Home / 118,075.45-162,947.22-72,783.36

Finding the Fourth Proportional to 118,075.45, 162,947.22 and 72,783.36

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Solution

The fourth proportional to 118,075.45, 162,947.22 and 72,783.36 is: 100,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,075.45 : 162,947.22 = 72,783.36 : x
  2. Step 2: Convert to fraction form
    118,075.45/162,947.22 = 72,783.36/x
  3. Step 3: Cross multiply
    118,075.45x = 162,947.22 × 72,783.36
  4. Step 4: Simplify right side
    118,075.45x = 11,859,846,106.02
  5. Step 5: Solve for x
    x = 11,859,846,106.02/118,075.45
  6. Step 6: Final answer
    x = 100,442.95

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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.