Home / 136,602.20-188,506.08-79,242.66

Finding the Fourth Proportional to 136,602.20, 188,506.08 and 79,242.66

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Solution

The fourth proportional to 136,602.20, 188,506.08 and 79,242.66 is: 109,352.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,602.20 : 188,506.08 = 79,242.66 : x
  2. Step 2: Convert to fraction form
    136,602.20/188,506.08 = 79,242.66/x
  3. Step 3: Cross multiply
    136,602.20x = 188,506.08 × 79,242.66
  4. Step 4: Simplify right side
    136,602.20x = 14,937,723,205.37
  5. Step 5: Solve for x
    x = 14,937,723,205.37/136,602.20
  6. Step 6: Final answer
    x = 109,352.00

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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.