Home / 208,075.45-287,145.11-117,435.24

Finding the Fourth Proportional to 208,075.45, 287,145.11 and 117,435.24

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Solution

The fourth proportional to 208,075.45, 287,145.11 and 117,435.24 is: 162,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,075.45 : 287,145.11 = 117,435.24 : x
  2. Step 2: Convert to fraction form
    208,075.45/287,145.11 = 117,435.24/x
  3. Step 3: Cross multiply
    208,075.45x = 287,145.11 × 117,435.24
  4. Step 4: Simplify right side
    208,075.45x = 33,720,954,907.68
  5. Step 5: Solve for x
    x = 33,720,954,907.68/208,075.45
  6. Step 6: Final answer
    x = 162,061.19

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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.