Home / 171,051.55-236,062.70-99,431.35

Finding the Fourth Proportional to 171,051.55, 236,062.70 and 99,431.35

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Solution

The fourth proportional to 171,051.55, 236,062.70 and 99,431.35 is: 137,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,051.55 : 236,062.70 = 99,431.35 : x
  2. Step 2: Convert to fraction form
    171,051.55/236,062.70 = 99,431.35/x
  3. Step 3: Cross multiply
    171,051.55x = 236,062.70 × 99,431.35
  4. Step 4: Simplify right side
    171,051.55x = 23,472,032,448.49
  5. Step 5: Solve for x
    x = 23,472,032,448.49/171,051.55
  6. Step 6: Final answer
    x = 137,221.98

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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.