Home / 102,008.48-153,012.49-27,128.63

Finding the Fourth Proportional to 102,008.48, 153,012.49 and 27,128.63

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Solution

The fourth proportional to 102,008.48, 153,012.49 and 27,128.63 is: 40,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,008.48 : 153,012.49 = 27,128.63 : x
  2. Step 2: Convert to fraction form
    102,008.48/153,012.49 = 27,128.63/x
  3. Step 3: Cross multiply
    102,008.48x = 153,012.49 × 27,128.63
  4. Step 4: Simplify right side
    102,008.48x = 4,151,019,541.30
  5. Step 5: Solve for x
    x = 4,151,019,541.30/102,008.48
  6. Step 6: Final answer
    x = 40,692.89

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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.