Home / 113,767.42-170,678.61-42,690.65

Finding the Fourth Proportional to 113,767.42, 170,678.61 and 42,690.65

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Solution

The fourth proportional to 113,767.42, 170,678.61 and 42,690.65 is: 64,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,767.42 : 170,678.61 = 42,690.65 : x
  2. Step 2: Convert to fraction form
    113,767.42/170,678.61 = 42,690.65/x
  3. Step 3: Cross multiply
    113,767.42x = 170,678.61 × 42,690.65
  4. Step 4: Simplify right side
    113,767.42x = 7,286,379,948.60
  5. Step 5: Solve for x
    x = 7,286,379,948.60/113,767.42
  6. Step 6: Final answer
    x = 64,046.28

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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.