Home / 136,905.90-204,955.65-102,000.30

Finding the Fourth Proportional to 136,905.90, 204,955.65 and 102,000.30

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Solution

The fourth proportional to 136,905.90, 204,955.65 and 102,000.30 is: 152,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,905.90 : 204,955.65 = 102,000.30 : x
  2. Step 2: Convert to fraction form
    136,905.90/204,955.65 = 102,000.30/x
  3. Step 3: Cross multiply
    136,905.90x = 204,955.65 × 102,000.30
  4. Step 4: Simplify right side
    136,905.90x = 20,905,537,786.70
  5. Step 5: Solve for x
    x = 20,905,537,786.70/136,905.90
  6. Step 6: Final answer
    x = 152,700.05

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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.