Home / 128,827.97-193,151.40-56,746.67

Finding the Fourth Proportional to 128,827.97, 193,151.40 and 56,746.67

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Solution

The fourth proportional to 128,827.97, 193,151.40 and 56,746.67 is: 85,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,827.97 : 193,151.40 = 56,746.67 : x
  2. Step 2: Convert to fraction form
    128,827.97/193,151.40 = 56,746.67/x
  3. Step 3: Cross multiply
    128,827.97x = 193,151.40 × 56,746.67
  4. Step 4: Simplify right side
    128,827.97x = 10,960,698,755.84
  5. Step 5: Solve for x
    x = 10,960,698,755.84/128,827.97
  6. Step 6: Final answer
    x = 85,080.12

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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.