Home / 136,467.13-188,325.03-79,117.60

Finding the Fourth Proportional to 136,467.13, 188,325.03 and 79,117.60

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Solution

The fourth proportional to 136,467.13, 188,325.03 and 79,117.60 is: 109,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,467.13 : 188,325.03 = 79,117.60 : x
  2. Step 2: Convert to fraction form
    136,467.13/188,325.03 = 79,117.60/x
  3. Step 3: Cross multiply
    136,467.13x = 188,325.03 × 79,117.60
  4. Step 4: Simplify right side
    136,467.13x = 14,899,824,393.53
  5. Step 5: Solve for x
    x = 14,899,824,393.53/136,467.13
  6. Step 6: Final answer
    x = 109,182.51

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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.