Home / 88,340.88-121,950.22-58,142.06

Finding the Fourth Proportional to 88,340.88, 121,950.22 and 58,142.06

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Solution

The fourth proportional to 88,340.88, 121,950.22 and 58,142.06 is: 80,262.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,340.88 : 121,950.22 = 58,142.06 : x
  2. Step 2: Convert to fraction form
    88,340.88/121,950.22 = 58,142.06/x
  3. Step 3: Cross multiply
    88,340.88x = 121,950.22 × 58,142.06
  4. Step 4: Simplify right side
    88,340.88x = 7,090,437,008.25
  5. Step 5: Solve for x
    x = 7,090,437,008.25/88,340.88
  6. Step 6: Final answer
    x = 80,262.24

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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.