Home / 99,515.67-137,320.76-59,223.84

Finding the Fourth Proportional to 99,515.67, 137,320.76 and 59,223.84

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Solution

The fourth proportional to 99,515.67, 137,320.76 and 59,223.84 is: 81,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.67 : 137,320.76 = 59,223.84 : x
  2. Step 2: Convert to fraction form
    99,515.67/137,320.76 = 59,223.84/x
  3. Step 3: Cross multiply
    99,515.67x = 137,320.76 × 59,223.84
  4. Step 4: Simplify right side
    99,515.67x = 8,132,662,422.80
  5. Step 5: Solve for x
    x = 8,132,662,422.80/99,515.67
  6. Step 6: Final answer
    x = 81,722.43

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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.