Home / 127,200.30-190,800.45-38,444.55

Finding the Fourth Proportional to 127,200.30, 190,800.45 and 38,444.55

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Solution

The fourth proportional to 127,200.30, 190,800.45 and 38,444.55 is: 57,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,200.30 : 190,800.45 = 38,444.55 : x
  2. Step 2: Convert to fraction form
    127,200.30/190,800.45 = 38,444.55/x
  3. Step 3: Cross multiply
    127,200.30x = 190,800.45 × 38,444.55
  4. Step 4: Simplify right side
    127,200.30x = 7,335,237,440.05
  5. Step 5: Solve for x
    x = 7,335,237,440.05/127,200.30
  6. Step 6: Final answer
    x = 57,666.83

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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.