Home / 102,528.06-141,558.67-66,317.28

Finding the Fourth Proportional to 102,528.06, 141,558.67 and 66,317.28

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Solution

The fourth proportional to 102,528.06, 141,558.67 and 66,317.28 is: 91,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,528.06 : 141,558.67 = 66,317.28 : x
  2. Step 2: Convert to fraction form
    102,528.06/141,558.67 = 66,317.28/x
  3. Step 3: Cross multiply
    102,528.06x = 141,558.67 × 66,317.28
  4. Step 4: Simplify right side
    102,528.06x = 9,387,785,954.82
  5. Step 5: Solve for x
    x = 9,387,785,954.82/102,528.06
  6. Step 6: Final answer
    x = 91,563.09

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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.