Home / 136,281.47-188,059.05-85,292.06

Finding the Fourth Proportional to 136,281.47, 188,059.05 and 85,292.06

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Solution

The fourth proportional to 136,281.47, 188,059.05 and 85,292.06 is: 117,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,281.47 : 188,059.05 = 85,292.06 : x
  2. Step 2: Convert to fraction form
    136,281.47/188,059.05 = 85,292.06/x
  3. Step 3: Cross multiply
    136,281.47x = 188,059.05 × 85,292.06
  4. Step 4: Simplify right side
    136,281.47x = 16,039,942,835.85
  5. Step 5: Solve for x
    x = 16,039,942,835.85/136,281.47
  6. Step 6: Final answer
    x = 117,697.17

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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.