Home / 112,138.02-168,319.26-80,585.10

Finding the Fourth Proportional to 112,138.02, 168,319.26 and 80,585.10

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Solution

The fourth proportional to 112,138.02, 168,319.26 and 80,585.10 is: 120,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,138.02 : 168,319.26 = 80,585.10 : x
  2. Step 2: Convert to fraction form
    112,138.02/168,319.26 = 80,585.10/x
  3. Step 3: Cross multiply
    112,138.02x = 168,319.26 × 80,585.10
  4. Step 4: Simplify right side
    112,138.02x = 13,564,024,399.03
  5. Step 5: Solve for x
    x = 13,564,024,399.03/112,138.02
  6. Step 6: Final answer
    x = 120,958.30

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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.