Home / 136,529.74-188,410.62-76,099.70

Finding the Fourth Proportional to 136,529.74, 188,410.62 and 76,099.70

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Solution

The fourth proportional to 136,529.74, 188,410.62 and 76,099.70 is: 105,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,529.74 : 188,410.62 = 76,099.70 : x
  2. Step 2: Convert to fraction form
    136,529.74/188,410.62 = 76,099.70/x
  3. Step 3: Cross multiply
    136,529.74x = 188,410.62 × 76,099.70
  4. Step 4: Simplify right side
    136,529.74x = 14,337,991,658.81
  5. Step 5: Solve for x
    x = 14,337,991,658.81/136,529.74
  6. Step 6: Final answer
    x = 105,017.35

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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.