Home / 145,094.08-200,249.37-81,435.36

Finding the Fourth Proportional to 145,094.08, 200,249.37 and 81,435.36

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Solution

The fourth proportional to 145,094.08, 200,249.37 and 81,435.36 is: 112,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,094.08 : 200,249.37 = 81,435.36 : x
  2. Step 2: Convert to fraction form
    145,094.08/200,249.37 = 81,435.36/x
  3. Step 3: Cross multiply
    145,094.08x = 200,249.37 × 81,435.36
  4. Step 4: Simplify right side
    145,094.08x = 16,307,379,535.72
  5. Step 5: Solve for x
    x = 16,307,379,535.72/145,094.08
  6. Step 6: Final answer
    x = 112,391.76

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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.