Home / 106,733.81-147,288.65-61,418.79

Finding the Fourth Proportional to 106,733.81, 147,288.65 and 61,418.79

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Solution

The fourth proportional to 106,733.81, 147,288.65 and 61,418.79 is: 84,755.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,733.81 : 147,288.65 = 61,418.79 : x
  2. Step 2: Convert to fraction form
    106,733.81/147,288.65 = 61,418.79/x
  3. Step 3: Cross multiply
    106,733.81x = 147,288.65 × 61,418.79
  4. Step 4: Simplify right side
    106,733.81x = 9,046,290,356.64
  5. Step 5: Solve for x
    x = 9,046,290,356.64/106,733.81
  6. Step 6: Final answer
    x = 84,755.63

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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.