Home / 92,659.68-139,182.08-74,910.40

Finding the Fourth Proportional to 92,659.68, 139,182.08 and 74,910.40

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Solution

The fourth proportional to 92,659.68, 139,182.08 and 74,910.40 is: 112,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,659.68 : 139,182.08 = 74,910.40 : x
  2. Step 2: Convert to fraction form
    92,659.68/139,182.08 = 74,910.40/x
  3. Step 3: Cross multiply
    92,659.68x = 139,182.08 × 74,910.40
  4. Step 4: Simplify right side
    92,659.68x = 10,426,185,285.63
  5. Step 5: Solve for x
    x = 10,426,185,285.63/92,659.68
  6. Step 6: Final answer
    x = 112,521.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.