Home / 99,127.20-136,733.28-58,812.44

Finding the Fourth Proportional to 99,127.20, 136,733.28 and 58,812.44

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Solution

The fourth proportional to 99,127.20, 136,733.28 and 58,812.44 is: 81,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,127.20 : 136,733.28 = 58,812.44 : x
  2. Step 2: Convert to fraction form
    99,127.20/136,733.28 = 58,812.44/x
  3. Step 3: Cross multiply
    99,127.20x = 136,733.28 × 58,812.44
  4. Step 4: Simplify right side
    99,127.20x = 8,041,617,826.00
  5. Step 5: Solve for x
    x = 8,041,617,826.00/99,127.20
  6. Step 6: Final answer
    x = 81,124.23

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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.