Home / 156,242.43-215,453.25-133,656.21

Finding the Fourth Proportional to 156,242.43, 215,453.25 and 133,656.21

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Solution

The fourth proportional to 156,242.43, 215,453.25 and 133,656.21 is: 184,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,242.43 : 215,453.25 = 133,656.21 : x
  2. Step 2: Convert to fraction form
    156,242.43/215,453.25 = 133,656.21/x
  3. Step 3: Cross multiply
    156,242.43x = 215,453.25 × 133,656.21
  4. Step 4: Simplify right side
    156,242.43x = 28,796,664,827.18
  5. Step 5: Solve for x
    x = 28,796,664,827.18/156,242.43
  6. Step 6: Final answer
    x = 184,307.58

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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.