Home / 110,171.40-152,083.05-74,409.86

Finding the Fourth Proportional to 110,171.40, 152,083.05 and 74,409.86

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Solution

The fourth proportional to 110,171.40, 152,083.05 and 74,409.86 is: 102,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,171.40 : 152,083.05 = 74,409.86 : x
  2. Step 2: Convert to fraction form
    110,171.40/152,083.05 = 74,409.86/x
  3. Step 3: Cross multiply
    110,171.40x = 152,083.05 × 74,409.86
  4. Step 4: Simplify right side
    110,171.40x = 11,316,477,698.46
  5. Step 5: Solve for x
    x = 11,316,477,698.46/110,171.40
  6. Step 6: Final answer
    x = 102,717.02

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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.