Home / 202,017.83-278,779.48-111,371.70

Finding the Fourth Proportional to 202,017.83, 278,779.48 and 111,371.70

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Solution

The fourth proportional to 202,017.83, 278,779.48 and 111,371.70 is: 153,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,017.83 : 278,779.48 = 111,371.70 : x
  2. Step 2: Convert to fraction form
    202,017.83/278,779.48 = 111,371.70/x
  3. Step 3: Cross multiply
    202,017.83x = 278,779.48 × 111,371.70
  4. Step 4: Simplify right side
    202,017.83x = 31,048,144,612.72
  5. Step 5: Solve for x
    x = 31,048,144,612.72/202,017.83
  6. Step 6: Final answer
    x = 153,690.12

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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.