Home / 72,193.12-108,121.47-70,200.16

Finding the Fourth Proportional to 72,193.12, 108,121.47 and 70,200.16

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Solution

The fourth proportional to 72,193.12, 108,121.47 and 70,200.16 is: 105,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193.12 : 108,121.47 = 70,200.16 : x
  2. Step 2: Convert to fraction form
    72,193.12/108,121.47 = 70,200.16/x
  3. Step 3: Cross multiply
    72,193.12x = 108,121.47 × 70,200.16
  4. Step 4: Simplify right side
    72,193.12x = 7,590,144,493.44
  5. Step 5: Solve for x
    x = 7,590,144,493.44/72,193.12
  6. Step 6: Final answer
    x = 105,136.67

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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.