Home / 127,157.12-190,737.12-38,411.36

Finding the Fourth Proportional to 127,157.12, 190,737.12 and 38,411.36

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Solution

The fourth proportional to 127,157.12, 190,737.12 and 38,411.36 is: 57,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,157.12 : 190,737.12 = 38,411.36 : x
  2. Step 2: Convert to fraction form
    127,157.12/190,737.12 = 38,411.36/x
  3. Step 3: Cross multiply
    127,157.12x = 190,737.12 × 38,411.36
  4. Step 4: Simplify right side
    127,157.12x = 7,326,472,181.68
  5. Step 5: Solve for x
    x = 7,326,472,181.68/127,157.12
  6. Step 6: Final answer
    x = 57,617.47

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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.