Home / 137,503.04-189,738.98-76,247.69

Finding the Fourth Proportional to 137,503.04, 189,738.98 and 76,247.69

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Solution

The fourth proportional to 137,503.04, 189,738.98 and 76,247.69 is: 105,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,503.04 : 189,738.98 = 76,247.69 : x
  2. Step 2: Convert to fraction form
    137,503.04/189,738.98 = 76,247.69/x
  3. Step 3: Cross multiply
    137,503.04x = 189,738.98 × 76,247.69
  4. Step 4: Simplify right side
    137,503.04x = 14,467,158,927.96
  5. Step 5: Solve for x
    x = 14,467,158,927.96/137,503.04
  6. Step 6: Final answer
    x = 105,213.38

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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.