Home / 106,769.12-147,356.08-61,446.20

Finding the Fourth Proportional to 106,769.12, 147,356.08 and 61,446.20

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Solution

The fourth proportional to 106,769.12, 147,356.08 and 61,446.20 is: 84,804.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,769.12 : 147,356.08 = 61,446.20 : x
  2. Step 2: Convert to fraction form
    106,769.12/147,356.08 = 61,446.20/x
  3. Step 3: Cross multiply
    106,769.12x = 147,356.08 × 61,446.20
  4. Step 4: Simplify right side
    106,769.12x = 9,054,471,162.90
  5. Step 5: Solve for x
    x = 9,054,471,162.90/106,769.12
  6. Step 6: Final answer
    x = 84,804.21

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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.