Home / 127,146.63-190,756.03-103,676.16

Finding the Fourth Proportional to 127,146.63, 190,756.03 and 103,676.16

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Solution

The fourth proportional to 127,146.63, 190,756.03 and 103,676.16 is: 155,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,146.63 : 190,756.03 = 103,676.16 : x
  2. Step 2: Convert to fraction form
    127,146.63/190,756.03 = 103,676.16/x
  3. Step 3: Cross multiply
    127,146.63x = 190,756.03 × 103,676.16
  4. Step 4: Simplify right side
    127,146.63x = 19,776,852,687.24
  5. Step 5: Solve for x
    x = 19,776,852,687.24/127,146.63
  6. Step 6: Final answer
    x = 155,543.66

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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.