Home / 136,917.60-189,075.56-129,462.60

Finding the Fourth Proportional to 136,917.60, 189,075.56 and 129,462.60

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Solution

The fourth proportional to 136,917.60, 189,075.56 and 129,462.60 is: 178,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,917.60 : 189,075.56 = 129,462.60 : x
  2. Step 2: Convert to fraction form
    136,917.60/189,075.56 = 129,462.60/x
  3. Step 3: Cross multiply
    136,917.60x = 189,075.56 × 129,462.60
  4. Step 4: Simplify right side
    136,917.60x = 24,478,213,594.06
  5. Step 5: Solve for x
    x = 24,478,213,594.06/136,917.60
  6. Step 6: Final answer
    x = 178,780.62

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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.