Home / 147,772.08-203,930.50-87,394.47

Finding the Fourth Proportional to 147,772.08, 203,930.50 and 87,394.47

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Solution

The fourth proportional to 147,772.08, 203,930.50 and 87,394.47 is: 120,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,772.08 : 203,930.50 = 87,394.47 : x
  2. Step 2: Convert to fraction form
    147,772.08/203,930.50 = 87,394.47/x
  3. Step 3: Cross multiply
    147,772.08x = 203,930.50 × 87,394.47
  4. Step 4: Simplify right side
    147,772.08x = 17,822,397,964.34
  5. Step 5: Solve for x
    x = 17,822,397,964.34/147,772.08
  6. Step 6: Final answer
    x = 120,607.34

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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.