Home / 131,043.03-180,826.88-76,607.97

Finding the Fourth Proportional to 131,043.03, 180,826.88 and 76,607.97

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Solution

The fourth proportional to 131,043.03, 180,826.88 and 76,607.97 is: 105,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,043.03 : 180,826.88 = 76,607.97 : x
  2. Step 2: Convert to fraction form
    131,043.03/180,826.88 = 76,607.97/x
  3. Step 3: Cross multiply
    131,043.03x = 180,826.88 × 76,607.97
  4. Step 4: Simplify right side
    131,043.03x = 13,852,779,815.19
  5. Step 5: Solve for x
    x = 13,852,779,815.19/131,043.03
  6. Step 6: Final answer
    x = 105,711.69

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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.