Home / 112,495.44-155,371.32-76,623.24

Finding the Fourth Proportional to 112,495.44, 155,371.32 and 76,623.24

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Solution

The fourth proportional to 112,495.44, 155,371.32 and 76,623.24 is: 105,826.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,495.44 : 155,371.32 = 76,623.24 : x
  2. Step 2: Convert to fraction form
    112,495.44/155,371.32 = 76,623.24/x
  3. Step 3: Cross multiply
    112,495.44x = 155,371.32 × 76,623.24
  4. Step 4: Simplify right side
    112,495.44x = 11,905,053,941.48
  5. Step 5: Solve for x
    x = 11,905,053,941.48/112,495.44
  6. Step 6: Final answer
    x = 105,826.99

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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.