Home / 202,012.38-278,779.02-111,371.66

Finding the Fourth Proportional to 202,012.38, 278,779.02 and 111,371.66

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Solution

The fourth proportional to 202,012.38, 278,779.02 and 111,371.66 is: 153,693.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,012.38 : 278,779.02 = 111,371.66 : x
  2. Step 2: Convert to fraction form
    202,012.38/278,779.02 = 111,371.66/x
  3. Step 3: Cross multiply
    202,012.38x = 278,779.02 × 111,371.66
  4. Step 4: Simplify right side
    202,012.38x = 31,048,082,230.57
  5. Step 5: Solve for x
    x = 31,048,082,230.57/202,012.38
  6. Step 6: Final answer
    x = 153,693.96

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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.