Home / 127,048.77-190,319.04-76,419.83

Finding the Fourth Proportional to 127,048.77, 190,319.04 and 76,419.83

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Solution

The fourth proportional to 127,048.77, 190,319.04 and 76,419.83 is: 114,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,048.77 : 190,319.04 = 76,419.83 : x
  2. Step 2: Convert to fraction form
    127,048.77/190,319.04 = 76,419.83/x
  3. Step 3: Cross multiply
    127,048.77x = 190,319.04 × 76,419.83
  4. Step 4: Simplify right side
    127,048.77x = 14,544,149,158.36
  5. Step 5: Solve for x
    x = 14,544,149,158.36/127,048.77
  6. Step 6: Final answer
    x = 114,476.90

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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.