Home / 112,043.48-154,620-61,056.21

Finding the Fourth Proportional to 112,043.48, 154,620 and 61,056.21

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Solution

The fourth proportional to 112,043.48, 154,620 and 61,056.21 is: 84,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,043.48 : 154,620 = 61,056.21 : x
  2. Step 2: Convert to fraction form
    112,043.48/154,620 = 61,056.21/x
  3. Step 3: Cross multiply
    112,043.48x = 154,620 × 61,056.21
  4. Step 4: Simplify right side
    112,043.48x = 9,440,511,190.20
  5. Step 5: Solve for x
    x = 9,440,511,190.20/112,043.48
  6. Step 6: Final answer
    x = 84,257.57

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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.