Home / 136,939.90-205,006.65-102,034.30

Finding the Fourth Proportional to 136,939.90, 205,006.65 and 102,034.30

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Solution

The fourth proportional to 136,939.90, 205,006.65 and 102,034.30 is: 152,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,939.90 : 205,006.65 = 102,034.30 : x
  2. Step 2: Convert to fraction form
    136,939.90/205,006.65 = 102,034.30/x
  3. Step 3: Cross multiply
    136,939.90x = 205,006.65 × 102,034.30
  4. Step 4: Simplify right side
    136,939.90x = 20,917,710,028.10
  5. Step 5: Solve for x
    x = 20,917,710,028.10/136,939.90
  6. Step 6: Final answer
    x = 152,751.02

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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.