Home / 135,279.36-202,787.20-56,416.16

Finding the Fourth Proportional to 135,279.36, 202,787.20 and 56,416.16

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Solution

The fourth proportional to 135,279.36, 202,787.20 and 56,416.16 is: 84,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,279.36 : 202,787.20 = 56,416.16 : x
  2. Step 2: Convert to fraction form
    135,279.36/202,787.20 = 56,416.16/x
  3. Step 3: Cross multiply
    135,279.36x = 202,787.20 × 56,416.16
  4. Step 4: Simplify right side
    135,279.36x = 11,440,475,121.15
  5. Step 5: Solve for x
    x = 11,440,475,121.15/135,279.36
  6. Step 6: Final answer
    x = 84,569.26

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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.