Home / 138,331.44-190,884.96-77,072.94

Finding the Fourth Proportional to 138,331.44, 190,884.96 and 77,072.94

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Solution

The fourth proportional to 138,331.44, 190,884.96 and 77,072.94 is: 106,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,331.44 : 190,884.96 = 77,072.94 : x
  2. Step 2: Convert to fraction form
    138,331.44/190,884.96 = 77,072.94/x
  3. Step 3: Cross multiply
    138,331.44x = 190,884.96 × 77,072.94
  4. Step 4: Simplify right side
    138,331.44x = 14,712,065,068.98
  5. Step 5: Solve for x
    x = 14,712,065,068.98/138,331.44
  6. Step 6: Final answer
    x = 106,353.73

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1.5x scale

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.