Home / 112,943.22-155,839.30-66,994.35

Finding the Fourth Proportional to 112,943.22, 155,839.30 and 66,994.35

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Solution

The fourth proportional to 112,943.22, 155,839.30 and 66,994.35 is: 92,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,943.22 : 155,839.30 = 66,994.35 : x
  2. Step 2: Convert to fraction form
    112,943.22/155,839.30 = 66,994.35/x
  3. Step 3: Cross multiply
    112,943.22x = 155,839.30 × 66,994.35
  4. Step 4: Simplify right side
    112,943.22x = 10,440,352,607.96
  5. Step 5: Solve for x
    x = 10,440,352,607.96/112,943.22
  6. Step 6: Final answer
    x = 92,438.95

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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.