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Finding the Fourth Proportional to 158,677.96, 218,918.12 and 104,259.45

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Solution

The fourth proportional to 158,677.96, 218,918.12 and 104,259.45 is: 143,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,677.96 : 218,918.12 = 104,259.45 : x
  2. Step 2: Convert to fraction form
    158,677.96/218,918.12 = 104,259.45/x
  3. Step 3: Cross multiply
    158,677.96x = 218,918.12 × 104,259.45
  4. Step 4: Simplify right side
    158,677.96x = 22,824,281,952.29
  5. Step 5: Solve for x
    x = 22,824,281,952.29/158,677.96
  6. Step 6: Final answer
    x = 143,840.28

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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.