Home / 113,860.48-170,809.08-42,788.65

Finding the Fourth Proportional to 113,860.48, 170,809.08 and 42,788.65

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Solution

The fourth proportional to 113,860.48, 170,809.08 and 42,788.65 is: 64,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,860.48 : 170,809.08 = 42,788.65 : x
  2. Step 2: Convert to fraction form
    113,860.48/170,809.08 = 42,788.65/x
  3. Step 3: Cross multiply
    113,860.48x = 170,809.08 × 42,788.65
  4. Step 4: Simplify right side
    113,860.48x = 7,308,689,940.94
  5. Step 5: Solve for x
    x = 7,308,689,940.94/113,860.48
  6. Step 6: Final answer
    x = 64,189.87

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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.