Home / 141,435.30-195,152.76-79,347.86

Finding the Fourth Proportional to 141,435.30, 195,152.76 and 79,347.86

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Solution

The fourth proportional to 141,435.30, 195,152.76 and 79,347.86 is: 109,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,435.30 : 195,152.76 = 79,347.86 : x
  2. Step 2: Convert to fraction form
    141,435.30/195,152.76 = 79,347.86/x
  3. Step 3: Cross multiply
    141,435.30x = 195,152.76 × 79,347.86
  4. Step 4: Simplify right side
    141,435.30x = 15,484,952,903.33
  5. Step 5: Solve for x
    x = 15,484,952,903.33/141,435.30
  6. Step 6: Final answer
    x = 109,484.36

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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.