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Finding the Fourth Proportional to 115,287.30, 159,050.61 and 69,948.63

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Solution

The fourth proportional to 115,287.30, 159,050.61 and 69,948.63 is: 96,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,287.30 : 159,050.61 = 69,948.63 : x
  2. Step 2: Convert to fraction form
    115,287.30/159,050.61 = 69,948.63/x
  3. Step 3: Cross multiply
    115,287.30x = 159,050.61 × 69,948.63
  4. Step 4: Simplify right side
    115,287.30x = 11,125,372,270.16
  5. Step 5: Solve for x
    x = 11,125,372,270.16/115,287.30
  6. Step 6: Final answer
    x = 96,501.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.