Home / 124,500.16-171,761.26-76,670.48

Finding the Fourth Proportional to 124,500.16, 171,761.26 and 76,670.48

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Solution

The fourth proportional to 124,500.16, 171,761.26 and 76,670.48 is: 105,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,500.16 : 171,761.26 = 76,670.48 : x
  2. Step 2: Convert to fraction form
    124,500.16/171,761.26 = 76,670.48/x
  3. Step 3: Cross multiply
    124,500.16x = 171,761.26 × 76,670.48
  4. Step 4: Simplify right side
    124,500.16x = 13,169,018,249.60
  5. Step 5: Solve for x
    x = 13,169,018,249.60/124,500.16
  6. Step 6: Final answer
    x = 105,775.11

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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.