Home / 105,854.90-158,796.95-39,289.37

Finding the Fourth Proportional to 105,854.90, 158,796.95 and 39,289.37

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Solution

The fourth proportional to 105,854.90, 158,796.95 and 39,289.37 is: 58,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,854.90 : 158,796.95 = 39,289.37 : x
  2. Step 2: Convert to fraction form
    105,854.90/158,796.95 = 39,289.37/x
  3. Step 3: Cross multiply
    105,854.90x = 158,796.95 × 39,289.37
  4. Step 4: Simplify right side
    105,854.90x = 6,239,031,132.99
  5. Step 5: Solve for x
    x = 6,239,031,132.99/105,854.90
  6. Step 6: Final answer
    x = 58,939.47

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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.