Home / 130,415.78-195,617.23-76,411.06

Finding the Fourth Proportional to 130,415.78, 195,617.23 and 76,411.06

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Solution

The fourth proportional to 130,415.78, 195,617.23 and 76,411.06 is: 114,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,415.78 : 195,617.23 = 76,411.06 : x
  2. Step 2: Convert to fraction form
    130,415.78/195,617.23 = 76,411.06/x
  3. Step 3: Cross multiply
    130,415.78x = 195,617.23 × 76,411.06
  4. Step 4: Simplify right side
    130,415.78x = 14,947,319,218.49
  5. Step 5: Solve for x
    x = 14,947,319,218.49/130,415.78
  6. Step 6: Final answer
    x = 114,612.81

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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.