Home / 112,907.26-169,389.37-79,692.20

Finding the Fourth Proportional to 112,907.26, 169,389.37 and 79,692.20

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Solution

The fourth proportional to 112,907.26, 169,389.37 and 79,692.20 is: 119,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,907.26 : 169,389.37 = 79,692.20 : x
  2. Step 2: Convert to fraction form
    112,907.26/169,389.37 = 79,692.20/x
  3. Step 3: Cross multiply
    112,907.26x = 169,389.37 × 79,692.20
  4. Step 4: Simplify right side
    112,907.26x = 13,499,011,439.79
  5. Step 5: Solve for x
    x = 13,499,011,439.79/112,907.26
  6. Step 6: Final answer
    x = 119,558.40

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1.5x scale

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.