Home / 109,211.46-163,607.09-66,968.24

Finding the Fourth Proportional to 109,211.46, 163,607.09 and 66,968.24

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Solution

The fourth proportional to 109,211.46, 163,607.09 and 66,968.24 is: 100,323.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,211.46 : 163,607.09 = 66,968.24 : x
  2. Step 2: Convert to fraction form
    109,211.46/163,607.09 = 66,968.24/x
  3. Step 3: Cross multiply
    109,211.46x = 163,607.09 × 66,968.24
  4. Step 4: Simplify right side
    109,211.46x = 10,956,477,715.95
  5. Step 5: Solve for x
    x = 10,956,477,715.95/109,211.46
  6. Step 6: Final answer
    x = 100,323.52

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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.