Home / 131,576.03-181,563.93-77,851.70

Finding the Fourth Proportional to 131,576.03, 181,563.93 and 77,851.70

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Solution

The fourth proportional to 131,576.03, 181,563.93 and 77,851.70 is: 107,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.03 : 181,563.93 = 77,851.70 : x
  2. Step 2: Convert to fraction form
    131,576.03/181,563.93 = 77,851.70/x
  3. Step 3: Cross multiply
    131,576.03x = 181,563.93 × 77,851.70
  4. Step 4: Simplify right side
    131,576.03x = 14,135,060,382.23
  5. Step 5: Solve for x
    x = 14,135,060,382.23/131,576.03
  6. Step 6: Final answer
    x = 107,428.84

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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.