Home / 131,030.32-180,826.68-74,451.28

Finding the Fourth Proportional to 131,030.32, 180,826.68 and 74,451.28

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Solution

The fourth proportional to 131,030.32, 180,826.68 and 74,451.28 is: 102,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,030.32 : 180,826.68 = 74,451.28 : x
  2. Step 2: Convert to fraction form
    131,030.32/180,826.68 = 74,451.28/x
  3. Step 3: Cross multiply
    131,030.32x = 180,826.68 × 74,451.28
  4. Step 4: Simplify right side
    131,030.32x = 13,462,777,784.15
  5. Step 5: Solve for x
    x = 13,462,777,784.15/131,030.32
  6. Step 6: Final answer
    x = 102,745.52

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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.