Home / 105,332.72-145,359.67-57,586.07

Finding the Fourth Proportional to 105,332.72, 145,359.67 and 57,586.07

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Solution

The fourth proportional to 105,332.72, 145,359.67 and 57,586.07 is: 79,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,332.72 : 145,359.67 = 57,586.07 : x
  2. Step 2: Convert to fraction form
    105,332.72/145,359.67 = 57,586.07/x
  3. Step 3: Cross multiply
    105,332.72x = 145,359.67 × 57,586.07
  4. Step 4: Simplify right side
    105,332.72x = 8,370,692,131.80
  5. Step 5: Solve for x
    x = 8,370,692,131.80/105,332.72
  6. Step 6: Final answer
    x = 79,469.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.