Home / 109,639.53-151,302.56-59,338.53

Finding the Fourth Proportional to 109,639.53, 151,302.56 and 59,338.53

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Solution

The fourth proportional to 109,639.53, 151,302.56 and 59,338.53 is: 81,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,639.53 : 151,302.56 = 59,338.53 : x
  2. Step 2: Convert to fraction form
    109,639.53/151,302.56 = 59,338.53/x
  3. Step 3: Cross multiply
    109,639.53x = 151,302.56 × 59,338.53
  4. Step 4: Simplify right side
    109,639.53x = 8,978,071,198.94
  5. Step 5: Solve for x
    x = 8,978,071,198.94/109,639.53
  6. Step 6: Final answer
    x = 81,887.17

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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.