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Finding the Fourth Proportional to 169,250.30, 253,802.55 and 84,977.90

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Solution

The fourth proportional to 169,250.30, 253,802.55 and 84,977.90 is: 127,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,250.30 : 253,802.55 = 84,977.90 : x
  2. Step 2: Convert to fraction form
    169,250.30/253,802.55 = 84,977.90/x
  3. Step 3: Cross multiply
    169,250.30x = 253,802.55 × 84,977.90
  4. Step 4: Simplify right side
    169,250.30x = 21,567,607,713.65
  5. Step 5: Solve for x
    x = 21,567,607,713.65/169,250.30
  6. Step 6: Final answer
    x = 127,430.25

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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.