Home / 127,037.88-190,557.05-38,316.78

Finding the Fourth Proportional to 127,037.88, 190,557.05 and 38,316.78

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Solution

The fourth proportional to 127,037.88, 190,557.05 and 38,316.78 is: 57,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,037.88 : 190,557.05 = 38,316.78 : x
  2. Step 2: Convert to fraction form
    127,037.88/190,557.05 = 38,316.78/x
  3. Step 3: Cross multiply
    127,037.88x = 190,557.05 × 38,316.78
  4. Step 4: Simplify right side
    127,037.88x = 7,301,532,370.72
  5. Step 5: Solve for x
    x = 7,301,532,370.72/127,037.88
  6. Step 6: Final answer
    x = 57,475.24

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1.5x scale

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.