Home / 99,193.21-136,903.47-58,928.72

Finding the Fourth Proportional to 99,193.21, 136,903.47 and 58,928.72

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Solution

The fourth proportional to 99,193.21, 136,903.47 and 58,928.72 is: 81,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,193.21 : 136,903.47 = 58,928.72 : x
  2. Step 2: Convert to fraction form
    99,193.21/136,903.47 = 58,928.72/x
  3. Step 3: Cross multiply
    99,193.21x = 136,903.47 × 58,928.72
  4. Step 4: Simplify right side
    99,193.21x = 8,067,545,345.16
  5. Step 5: Solve for x
    x = 8,067,545,345.16/99,193.21
  6. Step 6: Final answer
    x = 81,331.63

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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.