Home / 131,010.39-180,771.81-73,641.76

Finding the Fourth Proportional to 131,010.39, 180,771.81 and 73,641.76

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Solution

The fourth proportional to 131,010.39, 180,771.81 and 73,641.76 is: 101,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,010.39 : 180,771.81 = 73,641.76 : x
  2. Step 2: Convert to fraction form
    131,010.39/180,771.81 = 73,641.76/x
  3. Step 3: Cross multiply
    131,010.39x = 180,771.81 × 73,641.76
  4. Step 4: Simplify right side
    131,010.39x = 13,312,353,342.93
  5. Step 5: Solve for x
    x = 13,312,353,342.93/131,010.39
  6. Step 6: Final answer
    x = 101,612.96

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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.