Home / 215,072.18-322,592.06-86,996.60

Finding the Fourth Proportional to 215,072.18, 322,592.06 and 86,996.60

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Solution

The fourth proportional to 215,072.18, 322,592.06 and 86,996.60 is: 130,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,072.18 : 322,592.06 = 86,996.60 : x
  2. Step 2: Convert to fraction form
    215,072.18/322,592.06 = 86,996.60/x
  3. Step 3: Cross multiply
    215,072.18x = 322,592.06 × 86,996.60
  4. Step 4: Simplify right side
    215,072.18x = 28,064,411,011.53
  5. Step 5: Solve for x
    x = 28,064,411,011.53/215,072.18
  6. Step 6: Final answer
    x = 130,488.34

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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.