Home / 102,427.65-153,636-39,278.03

Finding the Fourth Proportional to 102,427.65, 153,636 and 39,278.03

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Solution

The fourth proportional to 102,427.65, 153,636 and 39,278.03 is: 58,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,427.65 : 153,636 = 39,278.03 : x
  2. Step 2: Convert to fraction form
    102,427.65/153,636 = 39,278.03/x
  3. Step 3: Cross multiply
    102,427.65x = 153,636 × 39,278.03
  4. Step 4: Simplify right side
    102,427.65x = 6,034,518,648.90
  5. Step 5: Solve for x
    x = 6,034,518,648.90/102,427.65
  6. Step 6: Final answer
    x = 58,914.94

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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.