Home / 187,328.56-258,434.94-122,813.26

Finding the Fourth Proportional to 187,328.56, 258,434.94 and 122,813.26

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Solution

The fourth proportional to 187,328.56, 258,434.94 and 122,813.26 is: 169,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,328.56 : 258,434.94 = 122,813.26 : x
  2. Step 2: Convert to fraction form
    187,328.56/258,434.94 = 122,813.26/x
  3. Step 3: Cross multiply
    187,328.56x = 258,434.94 × 122,813.26
  4. Step 4: Simplify right side
    187,328.56x = 31,739,237,479.30
  5. Step 5: Solve for x
    x = 31,739,237,479.30/187,328.56
  6. Step 6: Final answer
    x = 169,430.85

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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.