Home / 131,374.74-181,232.19-77,633.76

Finding the Fourth Proportional to 131,374.74, 181,232.19 and 77,633.76

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Solution

The fourth proportional to 131,374.74, 181,232.19 and 77,633.76 is: 107,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.74 : 181,232.19 = 77,633.76 : x
  2. Step 2: Convert to fraction form
    131,374.74/181,232.19 = 77,633.76/x
  3. Step 3: Cross multiply
    131,374.74x = 181,232.19 × 77,633.76
  4. Step 4: Simplify right side
    131,374.74x = 14,069,736,342.73
  5. Step 5: Solve for x
    x = 14,069,736,342.73/131,374.74
  6. Step 6: Final answer
    x = 107,096.21

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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.