Home / 136,572.03-188,454.20-82,870.11

Finding the Fourth Proportional to 136,572.03, 188,454.20 and 82,870.11

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Solution

The fourth proportional to 136,572.03, 188,454.20 and 82,870.11 is: 114,351.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,572.03 : 188,454.20 = 82,870.11 : x
  2. Step 2: Convert to fraction form
    136,572.03/188,454.20 = 82,870.11/x
  3. Step 3: Cross multiply
    136,572.03x = 188,454.20 × 82,870.11
  4. Step 4: Simplify right side
    136,572.03x = 15,617,219,869.61
  5. Step 5: Solve for x
    x = 15,617,219,869.61/136,572.03
  6. Step 6: Final answer
    x = 114,351.52

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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.