Home / 110,056.78-151,942.80-79,813

Finding the Fourth Proportional to 110,056.78, 151,942.80 and 79,813

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Solution

The fourth proportional to 110,056.78, 151,942.80 and 79,813 is: 110,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,056.78 : 151,942.80 = 79,813 : x
  2. Step 2: Convert to fraction form
    110,056.78/151,942.80 = 79,813/x
  3. Step 3: Cross multiply
    110,056.78x = 151,942.80 × 79,813
  4. Step 4: Simplify right side
    110,056.78x = 12,127,010,696.40
  5. Step 5: Solve for x
    x = 12,127,010,696.40/110,056.78
  6. Step 6: Final answer
    x = 110,188.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.