Home / 129,935.85-179,314.41-76,259.58

Finding the Fourth Proportional to 129,935.85, 179,314.41 and 76,259.58

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Solution

The fourth proportional to 129,935.85, 179,314.41 and 76,259.58 is: 105,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,935.85 : 179,314.41 = 76,259.58 : x
  2. Step 2: Convert to fraction form
    129,935.85/179,314.41 = 76,259.58/x
  3. Step 3: Cross multiply
    129,935.85x = 179,314.41 × 76,259.58
  4. Step 4: Simplify right side
    129,935.85x = 13,674,440,779.13
  5. Step 5: Solve for x
    x = 13,674,440,779.13/129,935.85
  6. Step 6: Final answer
    x = 105,239.94

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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.