Home / 136,120.04-187,846.26-79,519.40

Finding the Fourth Proportional to 136,120.04, 187,846.26 and 79,519.40

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Solution

The fourth proportional to 136,120.04, 187,846.26 and 79,519.40 is: 109,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,120.04 : 187,846.26 = 79,519.40 : x
  2. Step 2: Convert to fraction form
    136,120.04/187,846.26 = 79,519.40/x
  3. Step 3: Cross multiply
    136,120.04x = 187,846.26 × 79,519.40
  4. Step 4: Simplify right side
    136,120.04x = 14,937,421,887.44
  5. Step 5: Solve for x
    x = 14,937,421,887.44/136,120.04
  6. Step 6: Final answer
    x = 109,737.13

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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.