Home / 228,101.37-314,778-126,131.28

Finding the Fourth Proportional to 228,101.37, 314,778 and 126,131.28

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Solution

The fourth proportional to 228,101.37, 314,778 and 126,131.28 is: 174,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,101.37 : 314,778 = 126,131.28 : x
  2. Step 2: Convert to fraction form
    228,101.37/314,778 = 126,131.28/x
  3. Step 3: Cross multiply
    228,101.37x = 314,778 × 126,131.28
  4. Step 4: Simplify right side
    228,101.37x = 39,703,352,055.84
  5. Step 5: Solve for x
    x = 39,703,352,055.84/228,101.37
  6. Step 6: Final answer
    x = 174,060.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.