Home / 131,114.70-180,891.63-77,372.82

Finding the Fourth Proportional to 131,114.70, 180,891.63 and 77,372.82

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Solution

The fourth proportional to 131,114.70, 180,891.63 and 77,372.82 is: 106,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,114.70 : 180,891.63 = 77,372.82 : x
  2. Step 2: Convert to fraction form
    131,114.70/180,891.63 = 77,372.82/x
  3. Step 3: Cross multiply
    131,114.70x = 180,891.63 × 77,372.82
  4. Step 4: Simplify right side
    131,114.70x = 13,996,095,527.50
  5. Step 5: Solve for x
    x = 13,996,095,527.50/131,114.70
  6. Step 6: Final answer
    x = 106,746.96

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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.