Home / 202,010.72-278,776.76-111,370.28

Finding the Fourth Proportional to 202,010.72, 278,776.76 and 111,370.28

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Solution

The fourth proportional to 202,010.72, 278,776.76 and 111,370.28 is: 153,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,010.72 : 278,776.76 = 111,370.28 : x
  2. Step 2: Convert to fraction form
    202,010.72/278,776.76 = 111,370.28/x
  3. Step 3: Cross multiply
    202,010.72x = 278,776.76 × 111,370.28
  4. Step 4: Simplify right side
    202,010.72x = 31,047,445,818.69
  5. Step 5: Solve for x
    x = 31,047,445,818.69/202,010.72
  6. Step 6: Final answer
    x = 153,692.07

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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.