Home / 92,915.03-128,151.73-80,016.65

Finding the Fourth Proportional to 92,915.03, 128,151.73 and 80,016.65

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Solution

The fourth proportional to 92,915.03, 128,151.73 and 80,016.65 is: 110,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,915.03 : 128,151.73 = 80,016.65 : x
  2. Step 2: Convert to fraction form
    92,915.03/128,151.73 = 80,016.65/x
  3. Step 3: Cross multiply
    92,915.03x = 128,151.73 × 80,016.65
  4. Step 4: Simplify right side
    92,915.03x = 10,254,271,285.50
  5. Step 5: Solve for x
    x = 10,254,271,285.50/92,915.03
  6. Step 6: Final answer
    x = 110,361.81

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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.