Home / 130,186.86-195,363.21-87,007.28

Finding the Fourth Proportional to 130,186.86, 195,363.21 and 87,007.28

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Solution

The fourth proportional to 130,186.86, 195,363.21 and 87,007.28 is: 130,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,186.86 : 195,363.21 = 87,007.28 : x
  2. Step 2: Convert to fraction form
    130,186.86/195,363.21 = 87,007.28/x
  3. Step 3: Cross multiply
    130,186.86x = 195,363.21 × 87,007.28
  4. Step 4: Simplify right side
    130,186.86x = 16,998,020,863.63
  5. Step 5: Solve for x
    x = 16,998,020,863.63/130,186.86
  6. Step 6: Final answer
    x = 130,566.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.