Home / 129,707.47-194,620.32-66,571.93

Finding the Fourth Proportional to 129,707.47, 194,620.32 and 66,571.93

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Solution

The fourth proportional to 129,707.47, 194,620.32 and 66,571.93 is: 99,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,707.47 : 194,620.32 = 66,571.93 : x
  2. Step 2: Convert to fraction form
    129,707.47/194,620.32 = 66,571.93/x
  3. Step 3: Cross multiply
    129,707.47x = 194,620.32 × 66,571.93
  4. Step 4: Simplify right side
    129,707.47x = 12,956,250,319.62
  5. Step 5: Solve for x
    x = 12,956,250,319.62/129,707.47
  6. Step 6: Final answer
    x = 99,888.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.