Home / 111,541.29-153,955.41-63,809.61

Finding the Fourth Proportional to 111,541.29, 153,955.41 and 63,809.61

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Solution

The fourth proportional to 111,541.29, 153,955.41 and 63,809.61 is: 88,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,541.29 : 153,955.41 = 63,809.61 : x
  2. Step 2: Convert to fraction form
    111,541.29/153,955.41 = 63,809.61/x
  3. Step 3: Cross multiply
    111,541.29x = 153,955.41 × 63,809.61
  4. Step 4: Simplify right side
    111,541.29x = 9,823,834,669.49
  5. Step 5: Solve for x
    x = 9,823,834,669.49/111,541.29
  6. Step 6: Final answer
    x = 88,073.53

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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.