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Finding the Fourth Proportional to 136,566, 204,885.45 and 43,071.75

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Solution

The fourth proportional to 136,566, 204,885.45 and 43,071.75 is: 64,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,566 : 204,885.45 = 43,071.75 : x
  2. Step 2: Convert to fraction form
    136,566/204,885.45 = 43,071.75/x
  3. Step 3: Cross multiply
    136,566x = 204,885.45 × 43,071.75
  4. Step 4: Simplify right side
    136,566x = 8,824,774,881.04
  5. Step 5: Solve for x
    x = 8,824,774,881.04/136,566
  6. Step 6: Final answer
    x = 64,619.12

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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.