Home / 113,787.38-156,953.49-69,075.38

Finding the Fourth Proportional to 113,787.38, 156,953.49 and 69,075.38

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Solution

The fourth proportional to 113,787.38, 156,953.49 and 69,075.38 is: 95,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,787.38 : 156,953.49 = 69,075.38 : x
  2. Step 2: Convert to fraction form
    113,787.38/156,953.49 = 69,075.38/x
  3. Step 3: Cross multiply
    113,787.38x = 156,953.49 × 69,075.38
  4. Step 4: Simplify right side
    113,787.38x = 10,841,621,964.08
  5. Step 5: Solve for x
    x = 10,841,621,964.08/113,787.38
  6. Step 6: Final answer
    x = 95,279.65

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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.