Home / 113,476.36-156,573.64-65,726.86

Finding the Fourth Proportional to 113,476.36, 156,573.64 and 65,726.86

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Solution

The fourth proportional to 113,476.36, 156,573.64 and 65,726.86 is: 90,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,476.36 : 156,573.64 = 65,726.86 : x
  2. Step 2: Convert to fraction form
    113,476.36/156,573.64 = 65,726.86/x
  3. Step 3: Cross multiply
    113,476.36x = 156,573.64 × 65,726.86
  4. Step 4: Simplify right side
    113,476.36x = 10,291,093,715.97
  5. Step 5: Solve for x
    x = 10,291,093,715.97/113,476.36
  6. Step 6: Final answer
    x = 90,689.32

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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.