Home / 187,509.48-281,309.34-76,701.80

Finding the Fourth Proportional to 187,509.48, 281,309.34 and 76,701.80

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Solution

The fourth proportional to 187,509.48, 281,309.34 and 76,701.80 is: 115,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,509.48 : 281,309.34 = 76,701.80 : x
  2. Step 2: Convert to fraction form
    187,509.48/281,309.34 = 76,701.80/x
  3. Step 3: Cross multiply
    187,509.48x = 281,309.34 × 76,701.80
  4. Step 4: Simplify right side
    187,509.48x = 21,576,932,734.81
  5. Step 5: Solve for x
    x = 21,576,932,734.81/187,509.48
  6. Step 6: Final answer
    x = 115,071.16

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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.