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Finding the Fourth Proportional to 136,952.34, 205,428.43 and 51,579.28

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Solution

The fourth proportional to 136,952.34, 205,428.43 and 51,579.28 is: 77,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,952.34 : 205,428.43 = 51,579.28 : x
  2. Step 2: Convert to fraction form
    136,952.34/205,428.43 = 51,579.28/x
  3. Step 3: Cross multiply
    136,952.34x = 205,428.43 × 51,579.28
  4. Step 4: Simplify right side
    136,952.34x = 10,595,850,510.93
  5. Step 5: Solve for x
    x = 10,595,850,510.93/136,952.34
  6. Step 6: Final answer
    x = 77,368.89

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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.