Home / 127,130.31-190,706.58-47,169.18

Finding the Fourth Proportional to 127,130.31, 190,706.58 and 47,169.18

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Solution

The fourth proportional to 127,130.31, 190,706.58 and 47,169.18 is: 70,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.31 : 190,706.58 = 47,169.18 : x
  2. Step 2: Convert to fraction form
    127,130.31/190,706.58 = 47,169.18/x
  3. Step 3: Cross multiply
    127,130.31x = 190,706.58 × 47,169.18
  4. Step 4: Simplify right side
    127,130.31x = 8,995,472,999.20
  5. Step 5: Solve for x
    x = 8,995,472,999.20/127,130.31
  6. Step 6: Final answer
    x = 70,757.89

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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.