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Finding the Fourth Proportional to 131,374.99, 181,232.53 and 77,634.01

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Solution

The fourth proportional to 131,374.99, 181,232.53 and 77,634.01 is: 107,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.99 : 181,232.53 = 77,634.01 : x
  2. Step 2: Convert to fraction form
    131,374.99/181,232.53 = 77,634.01/x
  3. Step 3: Cross multiply
    131,374.99x = 181,232.53 × 77,634.01
  4. Step 4: Simplify right side
    131,374.99x = 14,069,808,046.35
  5. Step 5: Solve for x
    x = 14,069,808,046.35/131,374.99
  6. Step 6: Final answer
    x = 107,096.55

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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.