Home / 136,511.86-188,401.62-76,088.02

Finding the Fourth Proportional to 136,511.86, 188,401.62 and 76,088.02

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Solution

The fourth proportional to 136,511.86, 188,401.62 and 76,088.02 is: 105,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,511.86 : 188,401.62 = 76,088.02 : x
  2. Step 2: Convert to fraction form
    136,511.86/188,401.62 = 76,088.02/x
  3. Step 3: Cross multiply
    136,511.86x = 188,401.62 × 76,088.02
  4. Step 4: Simplify right side
    136,511.86x = 14,335,106,230.59
  5. Step 5: Solve for x
    x = 14,335,106,230.59/136,511.86
  6. Step 6: Final answer
    x = 105,009.97

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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.