Home / 129,307.05-178,555.86-95,374.35

Finding the Fourth Proportional to 129,307.05, 178,555.86 and 95,374.35

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Solution

The fourth proportional to 129,307.05, 178,555.86 and 95,374.35 is: 131,699.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307.05 : 178,555.86 = 95,374.35 : x
  2. Step 2: Convert to fraction form
    129,307.05/178,555.86 = 95,374.35/x
  3. Step 3: Cross multiply
    129,307.05x = 178,555.86 × 95,374.35
  4. Step 4: Simplify right side
    129,307.05x = 17,029,649,086.19
  5. Step 5: Solve for x
    x = 17,029,649,086.19/129,307.05
  6. Step 6: Final answer
    x = 131,699.31

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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.