Home / 109,835.80-164,948.10-84,936.40

Finding the Fourth Proportional to 109,835.80, 164,948.10 and 84,936.40

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Solution

The fourth proportional to 109,835.80, 164,948.10 and 84,936.40 is: 127,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,835.80 : 164,948.10 = 84,936.40 : x
  2. Step 2: Convert to fraction form
    109,835.80/164,948.10 = 84,936.40/x
  3. Step 3: Cross multiply
    109,835.80x = 164,948.10 × 84,936.40
  4. Step 4: Simplify right side
    109,835.80x = 14,010,097,800.84
  5. Step 5: Solve for x
    x = 14,010,097,800.84/109,835.80
  6. Step 6: Final answer
    x = 127,554.93

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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.