Home / 156,190.23-215,381.41-133,604

Finding the Fourth Proportional to 156,190.23, 215,381.41 and 133,604

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Solution

The fourth proportional to 156,190.23, 215,381.41 and 133,604 is: 184,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,190.23 : 215,381.41 = 133,604 : x
  2. Step 2: Convert to fraction form
    156,190.23/215,381.41 = 133,604/x
  3. Step 3: Cross multiply
    156,190.23x = 215,381.41 × 133,604
  4. Step 4: Simplify right side
    156,190.23x = 28,775,817,901.64
  5. Step 5: Solve for x
    x = 28,775,817,901.64/156,190.23
  6. Step 6: Final answer
    x = 184,235.71

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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.