Home / 109,407.15-164,128.02-47,078.19

Finding the Fourth Proportional to 109,407.15, 164,128.02 and 47,078.19

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Solution

The fourth proportional to 109,407.15, 164,128.02 and 47,078.19 is: 70,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,407.15 : 164,128.02 = 47,078.19 : x
  2. Step 2: Convert to fraction form
    109,407.15/164,128.02 = 47,078.19/x
  3. Step 3: Cross multiply
    109,407.15x = 164,128.02 × 47,078.19
  4. Step 4: Simplify right side
    109,407.15x = 7,726,850,109.88
  5. Step 5: Solve for x
    x = 7,726,850,109.88/109,407.15
  6. Step 6: Final answer
    x = 70,624.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.