Home / 127,200.70-190,828.74-38,451.90

Finding the Fourth Proportional to 127,200.70, 190,828.74 and 38,451.90

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Solution

The fourth proportional to 127,200.70, 190,828.74 and 38,451.90 is: 57,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,200.70 : 190,828.74 = 38,451.90 : x
  2. Step 2: Convert to fraction form
    127,200.70/190,828.74 = 38,451.90/x
  3. Step 3: Cross multiply
    127,200.70x = 190,828.74 × 38,451.90
  4. Step 4: Simplify right side
    127,200.70x = 7,337,727,894.62
  5. Step 5: Solve for x
    x = 7,337,727,894.62/127,200.70
  6. Step 6: Final answer
    x = 57,686.22

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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.