Home / 131,415.70-181,345.17-74,826.58

Finding the Fourth Proportional to 131,415.70, 181,345.17 and 74,826.58

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Solution

The fourth proportional to 131,415.70, 181,345.17 and 74,826.58 is: 103,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,415.70 : 181,345.17 = 74,826.58 : x
  2. Step 2: Convert to fraction form
    131,415.70/181,345.17 = 74,826.58/x
  3. Step 3: Cross multiply
    131,415.70x = 181,345.17 × 74,826.58
  4. Step 4: Simplify right side
    131,415.70x = 13,569,438,870.62
  5. Step 5: Solve for x
    x = 13,569,438,870.62/131,415.70
  6. Step 6: Final answer
    x = 103,255.84

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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.