Home / 150,854.08-208,131.76-87,168.64

Finding the Fourth Proportional to 150,854.08, 208,131.76 and 87,168.64

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Solution

The fourth proportional to 150,854.08, 208,131.76 and 87,168.64 is: 120,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,854.08 : 208,131.76 = 87,168.64 : x
  2. Step 2: Convert to fraction form
    150,854.08/208,131.76 = 87,168.64/x
  3. Step 3: Cross multiply
    150,854.08x = 208,131.76 × 87,168.64
  4. Step 4: Simplify right side
    150,854.08x = 18,142,562,460.01
  5. Step 5: Solve for x
    x = 18,142,562,460.01/150,854.08
  6. Step 6: Final answer
    x = 120,265.64

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1.5x scale

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.