Home / 112,121.80-154,765.58-66,814.00

Finding the Fourth Proportional to 112,121.80, 154,765.58 and 66,814.00

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Solution

The fourth proportional to 112,121.80, 154,765.58 and 66,814.00 is: 92,225.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.80 : 154,765.58 = 66,814.00 : x
  2. Step 2: Convert to fraction form
    112,121.80/154,765.58 = 66,814.00/x
  3. Step 3: Cross multiply
    112,121.80x = 154,765.58 × 66,814.00
  4. Step 4: Simplify right side
    112,121.80x = 10,340,507,116.96
  5. Step 5: Solve for x
    x = 10,340,507,116.96/112,121.80
  6. Step 6: Final answer
    x = 92,225.66

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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.