Home / 111,036.06-166,480.11-61,139.65

Finding the Fourth Proportional to 111,036.06, 166,480.11 and 61,139.65

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Solution

The fourth proportional to 111,036.06, 166,480.11 and 61,139.65 is: 91,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,036.06 : 166,480.11 = 61,139.65 : x
  2. Step 2: Convert to fraction form
    111,036.06/166,480.11 = 61,139.65/x
  3. Step 3: Cross multiply
    111,036.06x = 166,480.11 × 61,139.65
  4. Step 4: Simplify right side
    111,036.06x = 10,178,535,657.36
  5. Step 5: Solve for x
    x = 10,178,535,657.36/111,036.06
  6. Step 6: Final answer
    x = 91,668.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.