Home / 151,230.08-208,688.64-87,563.36

Finding the Fourth Proportional to 151,230.08, 208,688.64 and 87,563.36

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Solution

The fourth proportional to 151,230.08, 208,688.64 and 87,563.36 is: 120,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,230.08 : 208,688.64 = 87,563.36 : x
  2. Step 2: Convert to fraction form
    151,230.08/208,688.64 = 87,563.36/x
  3. Step 3: Cross multiply
    151,230.08x = 208,688.64 × 87,563.36
  4. Step 4: Simplify right side
    151,230.08x = 18,273,478,512.23
  5. Step 5: Solve for x
    x = 18,273,478,512.23/151,230.08
  6. Step 6: Final answer
    x = 120,832.30

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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.