Home / 134,603.20-185,760-76,461.76

Finding the Fourth Proportional to 134,603.20, 185,760 and 76,461.76

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Solution

The fourth proportional to 134,603.20, 185,760 and 76,461.76 is: 105,521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,603.20 : 185,760 = 76,461.76 : x
  2. Step 2: Convert to fraction form
    134,603.20/185,760 = 76,461.76/x
  3. Step 3: Cross multiply
    134,603.20x = 185,760 × 76,461.76
  4. Step 4: Simplify right side
    134,603.20x = 14,203,536,537.60
  5. Step 5: Solve for x
    x = 14,203,536,537.60/134,603.20
  6. Step 6: Final answer
    x = 105,521.54

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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.