Home / 163,359.42-225,456.39-99,699.90

Finding the Fourth Proportional to 163,359.42, 225,456.39 and 99,699.90

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Solution

The fourth proportional to 163,359.42, 225,456.39 and 99,699.90 is: 137,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,359.42 : 225,456.39 = 99,699.90 : x
  2. Step 2: Convert to fraction form
    163,359.42/225,456.39 = 99,699.90/x
  3. Step 3: Cross multiply
    163,359.42x = 225,456.39 × 99,699.90
  4. Step 4: Simplify right side
    163,359.42x = 22,477,979,537.36
  5. Step 5: Solve for x
    x = 22,477,979,537.36/163,359.42
  6. Step 6: Final answer
    x = 137,598.31

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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.