Home / 113,785.30-156,956.06-73,522.80

Finding the Fourth Proportional to 113,785.30, 156,956.06 and 73,522.80

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Solution

The fourth proportional to 113,785.30, 156,956.06 and 73,522.80 is: 101,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,785.30 : 156,956.06 = 73,522.80 : x
  2. Step 2: Convert to fraction form
    113,785.30/156,956.06 = 73,522.80/x
  3. Step 3: Cross multiply
    113,785.30x = 156,956.06 × 73,522.80
  4. Step 4: Simplify right side
    113,785.30x = 11,539,849,008.17
  5. Step 5: Solve for x
    x = 11,539,849,008.17/113,785.30
  6. Step 6: Final answer
    x = 101,417.75

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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.