Home / 131,927.74-182,028.57-78,225.95

Finding the Fourth Proportional to 131,927.74, 182,028.57 and 78,225.95

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Solution

The fourth proportional to 131,927.74, 182,028.57 and 78,225.95 is: 107,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,927.74 : 182,028.57 = 78,225.95 : x
  2. Step 2: Convert to fraction form
    131,927.74/182,028.57 = 78,225.95/x
  3. Step 3: Cross multiply
    131,927.74x = 182,028.57 × 78,225.95
  4. Step 4: Simplify right side
    131,927.74x = 14,239,357,977.12
  5. Step 5: Solve for x
    x = 14,239,357,977.12/131,927.74
  6. Step 6: Final answer
    x = 107,933.01

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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.