Home / 136,986.30-205,430.22-52,703.42

Finding the Fourth Proportional to 136,986.30, 205,430.22 and 52,703.42

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Solution

The fourth proportional to 136,986.30, 205,430.22 and 52,703.42 is: 79,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,986.30 : 205,430.22 = 52,703.42 : x
  2. Step 2: Convert to fraction form
    136,986.30/205,430.22 = 52,703.42/x
  3. Step 3: Cross multiply
    136,986.30x = 205,430.22 × 52,703.42
  4. Step 4: Simplify right side
    136,986.30x = 10,826,874,138.20
  5. Step 5: Solve for x
    x = 10,826,874,138.20/136,986.30
  6. Step 6: Final answer
    x = 79,036.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.