Home / 150,917.76-208,304.10-87,246.36

Finding the Fourth Proportional to 150,917.76, 208,304.10 and 87,246.36

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Solution

The fourth proportional to 150,917.76, 208,304.10 and 87,246.36 is: 120,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,917.76 : 208,304.10 = 87,246.36 : x
  2. Step 2: Convert to fraction form
    150,917.76/208,304.10 = 87,246.36/x
  3. Step 3: Cross multiply
    150,917.76x = 208,304.10 × 87,246.36
  4. Step 4: Simplify right side
    150,917.76x = 18,173,774,498.08
  5. Step 5: Solve for x
    x = 18,173,774,498.08/150,917.76
  6. Step 6: Final answer
    x = 120,421.71

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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.