Home / 215,076.80-322,599-87,001.22

Finding the Fourth Proportional to 215,076.80, 322,599 and 87,001.22

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Solution

The fourth proportional to 215,076.80, 322,599 and 87,001.22 is: 130,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,076.80 : 322,599 = 87,001.22 : x
  2. Step 2: Convert to fraction form
    215,076.80/322,599 = 87,001.22/x
  3. Step 3: Cross multiply
    215,076.80x = 322,599 × 87,001.22
  4. Step 4: Simplify right side
    215,076.80x = 28,066,506,570.78
  5. Step 5: Solve for x
    x = 28,066,506,570.78/215,076.80
  6. Step 6: Final answer
    x = 130,495.28

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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.