Home / 131,226.83-181,045.67-85,930.65

Finding the Fourth Proportional to 131,226.83, 181,045.67 and 85,930.65

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Solution

The fourth proportional to 131,226.83, 181,045.67 and 85,930.65 is: 118,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,226.83 : 181,045.67 = 85,930.65 : x
  2. Step 2: Convert to fraction form
    131,226.83/181,045.67 = 85,930.65/x
  3. Step 3: Cross multiply
    131,226.83x = 181,045.67 × 85,930.65
  4. Step 4: Simplify right side
    131,226.83x = 15,557,371,526.46
  5. Step 5: Solve for x
    x = 15,557,371,526.46/131,226.83
  6. Step 6: Final answer
    x = 118,553.28

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1.5x scale

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.