Home / 217,625.18-326,530.04-105,389.02

Finding the Fourth Proportional to 217,625.18, 326,530.04 and 105,389.02

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Solution

The fourth proportional to 217,625.18, 326,530.04 and 105,389.02 is: 158,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,625.18 : 326,530.04 = 105,389.02 : x
  2. Step 2: Convert to fraction form
    217,625.18/326,530.04 = 105,389.02/x
  3. Step 3: Cross multiply
    217,625.18x = 326,530.04 × 105,389.02
  4. Step 4: Simplify right side
    217,625.18x = 34,412,680,916.16
  5. Step 5: Solve for x
    x = 34,412,680,916.16/217,625.18
  6. Step 6: Final answer
    x = 158,128.21

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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.