Home / 126,996.36-190,482.23-77,063.05

Finding the Fourth Proportional to 126,996.36, 190,482.23 and 77,063.05

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Solution

The fourth proportional to 126,996.36, 190,482.23 and 77,063.05 is: 115,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,996.36 : 190,482.23 = 77,063.05 : x
  2. Step 2: Convert to fraction form
    126,996.36/190,482.23 = 77,063.05/x
  3. Step 3: Cross multiply
    126,996.36x = 190,482.23 × 77,063.05
  4. Step 4: Simplify right side
    126,996.36x = 14,679,140,973.90
  5. Step 5: Solve for x
    x = 14,679,140,973.90/126,996.36
  6. Step 6: Final answer
    x = 115,587.10

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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.