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Finding the Fourth Proportional to 134,752.65, 185,958.35 and 81,068.82

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Solution

The fourth proportional to 134,752.65, 185,958.35 and 81,068.82 is: 111,874.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,752.65 : 185,958.35 = 81,068.82 : x
  2. Step 2: Convert to fraction form
    134,752.65/185,958.35 = 81,068.82/x
  3. Step 3: Cross multiply
    134,752.65x = 185,958.35 × 81,068.82
  4. Step 4: Simplify right side
    134,752.65x = 15,075,423,598.30
  5. Step 5: Solve for x
    x = 15,075,423,598.30/134,752.65
  6. Step 6: Final answer
    x = 111,874.78

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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.