Home / 126,210.51-188,980.42-76,222.98

Finding the Fourth Proportional to 126,210.51, 188,980.42 and 76,222.98

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Solution

The fourth proportional to 126,210.51, 188,980.42 and 76,222.98 is: 114,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,210.51 : 188,980.42 = 76,222.98 : x
  2. Step 2: Convert to fraction form
    126,210.51/188,980.42 = 76,222.98/x
  3. Step 3: Cross multiply
    126,210.51x = 188,980.42 × 76,222.98
  4. Step 4: Simplify right side
    126,210.51x = 14,404,650,774.05
  5. Step 5: Solve for x
    x = 14,404,650,774.05/126,210.51
  6. Step 6: Final answer
    x = 114,131.94

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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.