Home / 156,297.62-215,611.43-98,840.12

Finding the Fourth Proportional to 156,297.62, 215,611.43 and 98,840.12

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Solution

The fourth proportional to 156,297.62, 215,611.43 and 98,840.12 is: 136,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,297.62 : 215,611.43 = 98,840.12 : x
  2. Step 2: Convert to fraction form
    156,297.62/215,611.43 = 98,840.12/x
  3. Step 3: Cross multiply
    156,297.62x = 215,611.43 × 98,840.12
  4. Step 4: Simplify right side
    156,297.62x = 21,311,058,783.61
  5. Step 5: Solve for x
    x = 21,311,058,783.61/156,297.62
  6. Step 6: Final answer
    x = 136,349.22

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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.