Home / 112,310.80-154,988.04-61,321.84

Finding the Fourth Proportional to 112,310.80, 154,988.04 and 61,321.84

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Solution

The fourth proportional to 112,310.80, 154,988.04 and 61,321.84 is: 84,623.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,310.80 : 154,988.04 = 61,321.84 : x
  2. Step 2: Convert to fraction form
    112,310.80/154,988.04 = 61,321.84/x
  3. Step 3: Cross multiply
    112,310.80x = 154,988.04 × 61,321.84
  4. Step 4: Simplify right side
    112,310.80x = 9,504,151,790.79
  5. Step 5: Solve for x
    x = 9,504,151,790.79/112,310.80
  6. Step 6: Final answer
    x = 84,623.67

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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.