Home / 127,315.30-190,612.08-105,795.22

Finding the Fourth Proportional to 127,315.30, 190,612.08 and 105,795.22

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Solution

The fourth proportional to 127,315.30, 190,612.08 and 105,795.22 is: 158,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,315.30 : 190,612.08 = 105,795.22 : x
  2. Step 2: Convert to fraction form
    127,315.30/190,612.08 = 105,795.22/x
  3. Step 3: Cross multiply
    127,315.30x = 190,612.08 × 105,795.22
  4. Step 4: Simplify right side
    127,315.30x = 20,165,846,938.26
  5. Step 5: Solve for x
    x = 20,165,846,938.26/127,315.30
  6. Step 6: Final answer
    x = 158,392.96

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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.