Home / 134,846.56-186,008.08-87,128.04

Finding the Fourth Proportional to 134,846.56, 186,008.08 and 87,128.04

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Solution

The fourth proportional to 134,846.56, 186,008.08 and 87,128.04 is: 120,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,846.56 : 186,008.08 = 87,128.04 : x
  2. Step 2: Convert to fraction form
    134,846.56/186,008.08 = 87,128.04/x
  3. Step 3: Cross multiply
    134,846.56x = 186,008.08 × 87,128.04
  4. Step 4: Simplify right side
    134,846.56x = 16,206,519,434.56
  5. Step 5: Solve for x
    x = 16,206,519,434.56/134,846.56
  6. Step 6: Final answer
    x = 120,184.89

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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.