Home / 156,076.49-215,381.88-88,091.57

Finding the Fourth Proportional to 156,076.49, 215,381.88 and 88,091.57

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Solution

The fourth proportional to 156,076.49, 215,381.88 and 88,091.57 is: 121,564.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,076.49 : 215,381.88 = 88,091.57 : x
  2. Step 2: Convert to fraction form
    156,076.49/215,381.88 = 88,091.57/x
  3. Step 3: Cross multiply
    156,076.49x = 215,381.88 × 88,091.57
  4. Step 4: Simplify right side
    156,076.49x = 18,973,326,881.84
  5. Step 5: Solve for x
    x = 18,973,326,881.84/156,076.49
  6. Step 6: Final answer
    x = 121,564.29

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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.