Home / 102,584.45-153,930-77,617.15

Finding the Fourth Proportional to 102,584.45, 153,930 and 77,617.15

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Solution

The fourth proportional to 102,584.45, 153,930 and 77,617.15 is: 116,466.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,584.45 : 153,930 = 77,617.15 : x
  2. Step 2: Convert to fraction form
    102,584.45/153,930 = 77,617.15/x
  3. Step 3: Cross multiply
    102,584.45x = 153,930 × 77,617.15
  4. Step 4: Simplify right side
    102,584.45x = 11,947,607,899.50
  5. Step 5: Solve for x
    x = 11,947,607,899.50/102,584.45
  6. Step 6: Final answer
    x = 116,466.07

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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.