Home / 104,419.62-156,364.48-87,508.17

Finding the Fourth Proportional to 104,419.62, 156,364.48 and 87,508.17

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Solution

The fourth proportional to 104,419.62, 156,364.48 and 87,508.17 is: 131,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.62 : 156,364.48 = 87,508.17 : x
  2. Step 2: Convert to fraction form
    104,419.62/156,364.48 = 87,508.17/x
  3. Step 3: Cross multiply
    104,419.62x = 156,364.48 × 87,508.17
  4. Step 4: Simplify right side
    104,419.62x = 13,683,169,474.49
  5. Step 5: Solve for x
    x = 13,683,169,474.49/104,419.62
  6. Step 6: Final answer
    x = 131,040.21

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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.