Home / 136,105.71-187,798.26-79,506.15

Finding the Fourth Proportional to 136,105.71, 187,798.26 and 79,506.15

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Solution

The fourth proportional to 136,105.71, 187,798.26 and 79,506.15 is: 109,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,105.71 : 187,798.26 = 79,506.15 : x
  2. Step 2: Convert to fraction form
    136,105.71/187,798.26 = 79,506.15/x
  3. Step 3: Cross multiply
    136,105.71x = 187,798.26 × 79,506.15
  4. Step 4: Simplify right side
    136,105.71x = 14,931,116,629.30
  5. Step 5: Solve for x
    x = 14,931,116,629.30/136,105.71
  6. Step 6: Final answer
    x = 109,702.35

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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.