Home / 105,351.72-157,953.76-38,783.19

Finding the Fourth Proportional to 105,351.72, 157,953.76 and 38,783.19

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Solution

The fourth proportional to 105,351.72, 157,953.76 and 38,783.19 is: 58,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,351.72 : 157,953.76 = 38,783.19 : x
  2. Step 2: Convert to fraction form
    105,351.72/157,953.76 = 38,783.19/x
  3. Step 3: Cross multiply
    105,351.72x = 157,953.76 × 38,783.19
  4. Step 4: Simplify right side
    105,351.72x = 6,125,950,510.33
  5. Step 5: Solve for x
    x = 6,125,950,510.33/105,351.72
  6. Step 6: Final answer
    x = 58,147.61

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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.