Home / 119,513.08-164,996.70-79,281.40

Finding the Fourth Proportional to 119,513.08, 164,996.70 and 79,281.40

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Solution

The fourth proportional to 119,513.08, 164,996.70 and 79,281.40 is: 109,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,513.08 : 164,996.70 = 79,281.40 : x
  2. Step 2: Convert to fraction form
    119,513.08/164,996.70 = 79,281.40/x
  3. Step 3: Cross multiply
    119,513.08x = 164,996.70 × 79,281.40
  4. Step 4: Simplify right side
    119,513.08x = 13,081,169,371.38
  5. Step 5: Solve for x
    x = 13,081,169,371.38/119,513.08
  6. Step 6: Final answer
    x = 109,453.87

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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.