Home / 109,315.40-164,001.90-39,187.40

Finding the Fourth Proportional to 109,315.40, 164,001.90 and 39,187.40

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Solution

The fourth proportional to 109,315.40, 164,001.90 and 39,187.40 is: 58,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.40 : 164,001.90 = 39,187.40 : x
  2. Step 2: Convert to fraction form
    109,315.40/164,001.90 = 39,187.40/x
  3. Step 3: Cross multiply
    109,315.40x = 164,001.90 × 39,187.40
  4. Step 4: Simplify right side
    109,315.40x = 6,426,808,056.06
  5. Step 5: Solve for x
    x = 6,426,808,056.06/109,315.40
  6. Step 6: Final answer
    x = 58,791.42

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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.