Home / 145,326.30-200,555.37-81,662.82

Finding the Fourth Proportional to 145,326.30, 200,555.37 and 81,662.82

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Solution

The fourth proportional to 145,326.30, 200,555.37 and 81,662.82 is: 112,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,326.30 : 200,555.37 = 81,662.82 : x
  2. Step 2: Convert to fraction form
    145,326.30/200,555.37 = 81,662.82/x
  3. Step 3: Cross multiply
    145,326.30x = 200,555.37 × 81,662.82
  4. Step 4: Simplify right side
    145,326.30x = 16,377,917,080.34
  5. Step 5: Solve for x
    x = 16,377,917,080.34/145,326.30
  6. Step 6: Final answer
    x = 112,697.54

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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.