Home / 112,483.44-155,354.76-76,611.24

Finding the Fourth Proportional to 112,483.44, 155,354.76 and 76,611.24

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Solution

The fourth proportional to 112,483.44, 155,354.76 and 76,611.24 is: 105,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,483.44 : 155,354.76 = 76,611.24 : x
  2. Step 2: Convert to fraction form
    112,483.44/155,354.76 = 76,611.24/x
  3. Step 3: Cross multiply
    112,483.44x = 155,354.76 × 76,611.24
  4. Step 4: Simplify right side
    112,483.44x = 11,901,920,803.50
  5. Step 5: Solve for x
    x = 11,901,920,803.50/112,483.44
  6. Step 6: Final answer
    x = 105,810.43

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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.