Home / 112,145.51-154,772.80-68,563.63

Finding the Fourth Proportional to 112,145.51, 154,772.80 and 68,563.63

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Solution

The fourth proportional to 112,145.51, 154,772.80 and 68,563.63 is: 94,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.51 : 154,772.80 = 68,563.63 : x
  2. Step 2: Convert to fraction form
    112,145.51/154,772.80 = 68,563.63/x
  3. Step 3: Cross multiply
    112,145.51x = 154,772.80 × 68,563.63
  4. Step 4: Simplify right side
    112,145.51x = 10,611,784,993.26
  5. Step 5: Solve for x
    x = 10,611,784,993.26/112,145.51
  6. Step 6: Final answer
    x = 94,625.15

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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.