Home / 109,075.20-163,612.80-104,409.60

Finding the Fourth Proportional to 109,075.20, 163,612.80 and 104,409.60

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Solution

The fourth proportional to 109,075.20, 163,612.80 and 104,409.60 is: 156,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,075.20 : 163,612.80 = 104,409.60 : x
  2. Step 2: Convert to fraction form
    109,075.20/163,612.80 = 104,409.60/x
  3. Step 3: Cross multiply
    109,075.20x = 163,612.80 × 104,409.60
  4. Step 4: Simplify right side
    109,075.20x = 17,082,747,002.88
  5. Step 5: Solve for x
    x = 17,082,747,002.88/109,075.20
  6. Step 6: Final answer
    x = 156,614.40

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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.