Home / 105,487.72-158,293.82-38,974.92

Finding the Fourth Proportional to 105,487.72, 158,293.82 and 38,974.92

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Solution

The fourth proportional to 105,487.72, 158,293.82 and 38,974.92 is: 58,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,487.72 : 158,293.82 = 38,974.92 : x
  2. Step 2: Convert to fraction form
    105,487.72/158,293.82 = 38,974.92/x
  3. Step 3: Cross multiply
    105,487.72x = 158,293.82 × 38,974.92
  4. Step 4: Simplify right side
    105,487.72x = 6,169,488,970.99
  5. Step 5: Solve for x
    x = 6,169,488,970.99/105,487.72
  6. Step 6: Final answer
    x = 58,485.38

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1.5x scale

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.