Home / 99,070.26-136,716.96-56,629.71

Finding the Fourth Proportional to 99,070.26, 136,716.96 and 56,629.71

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Solution

The fourth proportional to 99,070.26, 136,716.96 and 56,629.71 is: 78,149.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,070.26 : 136,716.96 = 56,629.71 : x
  2. Step 2: Convert to fraction form
    99,070.26/136,716.96 = 56,629.71/x
  3. Step 3: Cross multiply
    99,070.26x = 136,716.96 × 56,629.71
  4. Step 4: Simplify right side
    99,070.26x = 7,742,241,796.88
  5. Step 5: Solve for x
    x = 7,742,241,796.88/99,070.26
  6. Step 6: Final answer
    x = 78,149.00

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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.