Home / 136,300.34-204,538-66,141.38

Finding the Fourth Proportional to 136,300.34, 204,538 and 66,141.38

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Solution

The fourth proportional to 136,300.34, 204,538 and 66,141.38 is: 99,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,300.34 : 204,538 = 66,141.38 : x
  2. Step 2: Convert to fraction form
    136,300.34/204,538 = 66,141.38/x
  3. Step 3: Cross multiply
    136,300.34x = 204,538 × 66,141.38
  4. Step 4: Simplify right side
    136,300.34x = 13,528,425,582.44
  5. Step 5: Solve for x
    x = 13,528,425,582.44/136,300.34
  6. Step 6: Final answer
    x = 99,254.53

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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.