Home / 131,109.18-180,928.98-74,516.82

Finding the Fourth Proportional to 131,109.18, 180,928.98 and 74,516.82

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Solution

The fourth proportional to 131,109.18, 180,928.98 and 74,516.82 is: 102,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109.18 : 180,928.98 = 74,516.82 : x
  2. Step 2: Convert to fraction form
    131,109.18/180,928.98 = 74,516.82/x
  3. Step 3: Cross multiply
    131,109.18x = 180,928.98 × 74,516.82
  4. Step 4: Simplify right side
    131,109.18x = 13,482,252,235.44
  5. Step 5: Solve for x
    x = 13,482,252,235.44/131,109.18
  6. Step 6: Final answer
    x = 102,832.25

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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.