Home / 109,071.64-163,611.12-30,179.26

Finding the Fourth Proportional to 109,071.64, 163,611.12 and 30,179.26

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Solution

The fourth proportional to 109,071.64, 163,611.12 and 30,179.26 is: 45,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,071.64 : 163,611.12 = 30,179.26 : x
  2. Step 2: Convert to fraction form
    109,071.64/163,611.12 = 30,179.26/x
  3. Step 3: Cross multiply
    109,071.64x = 163,611.12 × 30,179.26
  4. Step 4: Simplify right side
    109,071.64x = 4,937,662,529.37
  5. Step 5: Solve for x
    x = 4,937,662,529.37/109,071.64
  6. Step 6: Final answer
    x = 45,269.90

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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.