Home / 127,985.98-176,625.46-71,408.28

Finding the Fourth Proportional to 127,985.98, 176,625.46 and 71,408.28

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Solution

The fourth proportional to 127,985.98, 176,625.46 and 71,408.28 is: 98,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.98 : 176,625.46 = 71,408.28 : x
  2. Step 2: Convert to fraction form
    127,985.98/176,625.46 = 71,408.28/x
  3. Step 3: Cross multiply
    127,985.98x = 176,625.46 × 71,408.28
  4. Step 4: Simplify right side
    127,985.98x = 12,612,520,302.81
  5. Step 5: Solve for x
    x = 12,612,520,302.81/127,985.98
  6. Step 6: Final answer
    x = 98,546.11

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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.