Home / 117,420.96-176,130-55,047.36

Finding the Fourth Proportional to 117,420.96, 176,130 and 55,047.36

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Solution

The fourth proportional to 117,420.96, 176,130 and 55,047.36 is: 82,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,420.96 : 176,130 = 55,047.36 : x
  2. Step 2: Convert to fraction form
    117,420.96/176,130 = 55,047.36/x
  3. Step 3: Cross multiply
    117,420.96x = 176,130 × 55,047.36
  4. Step 4: Simplify right side
    117,420.96x = 9,695,491,516.80
  5. Step 5: Solve for x
    x = 9,695,491,516.80/117,420.96
  6. Step 6: Final answer
    x = 82,570.36

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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.