Home / 99,210.84-136,896.60-56,761.44

Finding the Fourth Proportional to 99,210.84, 136,896.60 and 56,761.44

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Solution

The fourth proportional to 99,210.84, 136,896.60 and 56,761.44 is: 78,322.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,210.84 : 136,896.60 = 56,761.44 : x
  2. Step 2: Convert to fraction form
    99,210.84/136,896.60 = 56,761.44/x
  3. Step 3: Cross multiply
    99,210.84x = 136,896.60 × 56,761.44
  4. Step 4: Simplify right side
    99,210.84x = 7,770,448,147.10
  5. Step 5: Solve for x
    x = 7,770,448,147.10/99,210.84
  6. Step 6: Final answer
    x = 78,322.57

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1.5x scale

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.