Home / 136,420.57-188,263.67-75,992.18

Finding the Fourth Proportional to 136,420.57, 188,263.67 and 75,992.18

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Solution

The fourth proportional to 136,420.57, 188,263.67 and 75,992.18 is: 104,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,420.57 : 188,263.67 = 75,992.18 : x
  2. Step 2: Convert to fraction form
    136,420.57/188,263.67 = 75,992.18/x
  3. Step 3: Cross multiply
    136,420.57x = 188,263.67 × 75,992.18
  4. Step 4: Simplify right side
    136,420.57x = 14,306,565,376.82
  5. Step 5: Solve for x
    x = 14,306,565,376.82/136,420.57
  6. Step 6: Final answer
    x = 104,871.03

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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.