Home / 136,114.59-187,810.47-79,515.03

Finding the Fourth Proportional to 136,114.59, 187,810.47 and 79,515.03

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Solution

The fourth proportional to 136,114.59, 187,810.47 and 79,515.03 is: 109,714.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,114.59 : 187,810.47 = 79,515.03 : x
  2. Step 2: Convert to fraction form
    136,114.59/187,810.47 = 79,515.03/x
  3. Step 3: Cross multiply
    136,114.59x = 187,810.47 × 79,515.03
  4. Step 4: Simplify right side
    136,114.59x = 14,933,755,156.36
  5. Step 5: Solve for x
    x = 14,933,755,156.36/136,114.59
  6. Step 6: Final answer
    x = 109,714.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.