Home / 205,956.10-308,545.35-105,775.30

Finding the Fourth Proportional to 205,956.10, 308,545.35 and 105,775.30

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Solution

The fourth proportional to 205,956.10, 308,545.35 and 105,775.30 is: 158,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,956.10 : 308,545.35 = 105,775.30 : x
  2. Step 2: Convert to fraction form
    205,956.10/308,545.35 = 105,775.30/x
  3. Step 3: Cross multiply
    205,956.10x = 308,545.35 × 105,775.30
  4. Step 4: Simplify right side
    205,956.10x = 32,636,476,959.86
  5. Step 5: Solve for x
    x = 32,636,476,959.86/205,956.10
  6. Step 6: Final answer
    x = 158,463.27

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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.