Home / 84,501.67-127,345.66-76,076.59

Finding the Fourth Proportional to 84,501.67, 127,345.66 and 76,076.59

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Solution

The fourth proportional to 84,501.67, 127,345.66 and 76,076.59 is: 114,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,501.67 : 127,345.66 = 76,076.59 : x
  2. Step 2: Convert to fraction form
    84,501.67/127,345.66 = 76,076.59/x
  3. Step 3: Cross multiply
    84,501.67x = 127,345.66 × 76,076.59
  4. Step 4: Simplify right side
    84,501.67x = 9,688,023,183.72
  5. Step 5: Solve for x
    x = 9,688,023,183.72/84,501.67
  6. Step 6: Final answer
    x = 114,648.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.