Home / 131,314.56-181,206.64-77,604.58

Finding the Fourth Proportional to 131,314.56, 181,206.64 and 77,604.58

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Solution

The fourth proportional to 131,314.56, 181,206.64 and 77,604.58 is: 107,089.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,314.56 : 181,206.64 = 77,604.58 : x
  2. Step 2: Convert to fraction form
    131,314.56/181,206.64 = 77,604.58/x
  3. Step 3: Cross multiply
    131,314.56x = 181,206.64 × 77,604.58
  4. Step 4: Simplify right side
    131,314.56x = 14,062,465,190.41
  5. Step 5: Solve for x
    x = 14,062,465,190.41/131,314.56
  6. Step 6: Final answer
    x = 107,089.92

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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.