Home / 107,520.21-148,381.71-59,125.80

Finding the Fourth Proportional to 107,520.21, 148,381.71 and 59,125.80

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Solution

The fourth proportional to 107,520.21, 148,381.71 and 59,125.80 is: 81,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,520.21 : 148,381.71 = 59,125.80 : x
  2. Step 2: Convert to fraction form
    107,520.21/148,381.71 = 59,125.80/x
  3. Step 3: Cross multiply
    107,520.21x = 148,381.71 × 59,125.80
  4. Step 4: Simplify right side
    107,520.21x = 8,773,187,309.12
  5. Step 5: Solve for x
    x = 8,773,187,309.12/107,520.21
  6. Step 6: Final answer
    x = 81,595.70

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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.