Home / 172,558.29-258,880.37-137,153.19

Finding the Fourth Proportional to 172,558.29, 258,880.37 and 137,153.19

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Solution

The fourth proportional to 172,558.29, 258,880.37 and 137,153.19 is: 205,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,558.29 : 258,880.37 = 137,153.19 : x
  2. Step 2: Convert to fraction form
    172,558.29/258,880.37 = 137,153.19/x
  3. Step 3: Cross multiply
    172,558.29x = 258,880.37 × 137,153.19
  4. Step 4: Simplify right side
    172,558.29x = 35,506,267,888.11
  5. Step 5: Solve for x
    x = 35,506,267,888.11/172,558.29
  6. Step 6: Final answer
    x = 205,763.91

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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.