Home / 134,885.36-186,036.54-86,491.88

Finding the Fourth Proportional to 134,885.36, 186,036.54 and 86,491.88

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Solution

The fourth proportional to 134,885.36, 186,036.54 and 86,491.88 is: 119,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,885.36 : 186,036.54 = 86,491.88 : x
  2. Step 2: Convert to fraction form
    134,885.36/186,036.54 = 86,491.88/x
  3. Step 3: Cross multiply
    134,885.36x = 186,036.54 × 86,491.88
  4. Step 4: Simplify right side
    134,885.36x = 16,090,650,093.30
  5. Step 5: Solve for x
    x = 16,090,650,093.30/134,885.36
  6. Step 6: Final answer
    x = 119,291.30

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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.