Home / 147,771.08-203,929.12-87,393.47

Finding the Fourth Proportional to 147,771.08, 203,929.12 and 87,393.47

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Solution

The fourth proportional to 147,771.08, 203,929.12 and 87,393.47 is: 120,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,771.08 : 203,929.12 = 87,393.47 : x
  2. Step 2: Convert to fraction form
    147,771.08/203,929.12 = 87,393.47/x
  3. Step 3: Cross multiply
    147,771.08x = 203,929.12 × 87,393.47
  4. Step 4: Simplify right side
    147,771.08x = 17,822,073,722.19
  5. Step 5: Solve for x
    x = 17,822,073,722.19/147,771.08
  6. Step 6: Final answer
    x = 120,605.97

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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.