Home / 150,862.34-208,166.90-87,187.86

Finding the Fourth Proportional to 150,862.34, 208,166.90 and 87,187.86

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Solution

The fourth proportional to 150,862.34, 208,166.90 and 87,187.86 is: 120,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,862.34 : 208,166.90 = 87,187.86 : x
  2. Step 2: Convert to fraction form
    150,862.34/208,166.90 = 87,187.86/x
  3. Step 3: Cross multiply
    150,862.34x = 208,166.90 × 87,187.86
  4. Step 4: Simplify right side
    150,862.34x = 18,149,626,533.83
  5. Step 5: Solve for x
    x = 18,149,626,533.83/150,862.34
  6. Step 6: Final answer
    x = 120,305.88

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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.