Home / 99,132.24-136,810.64-56,698.96

Finding the Fourth Proportional to 99,132.24, 136,810.64 and 56,698.96

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Solution

The fourth proportional to 99,132.24, 136,810.64 and 56,698.96 is: 78,249.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,132.24 : 136,810.64 = 56,698.96 : x
  2. Step 2: Convert to fraction form
    99,132.24/136,810.64 = 56,698.96/x
  3. Step 3: Cross multiply
    99,132.24x = 136,810.64 × 56,698.96
  4. Step 4: Simplify right side
    99,132.24x = 7,757,021,004.93
  5. Step 5: Solve for x
    x = 7,757,021,004.93/99,132.24
  6. Step 6: Final answer
    x = 78,249.23

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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.