Home / 172,421.90-258,049.65-151,426.70

Finding the Fourth Proportional to 172,421.90, 258,049.65 and 151,426.70

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Solution

The fourth proportional to 172,421.90, 258,049.65 and 151,426.70 is: 226,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,421.90 : 258,049.65 = 151,426.70 : x
  2. Step 2: Convert to fraction form
    172,421.90/258,049.65 = 151,426.70/x
  3. Step 3: Cross multiply
    172,421.90x = 258,049.65 × 151,426.70
  4. Step 4: Simplify right side
    172,421.90x = 39,075,606,935.66
  5. Step 5: Solve for x
    x = 39,075,606,935.66/172,421.90
  6. Step 6: Final answer
    x = 226,627.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.