Home / 99,962.12-137,934.41-64,200.57

Finding the Fourth Proportional to 99,962.12, 137,934.41 and 64,200.57

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Solution

The fourth proportional to 99,962.12, 137,934.41 and 64,200.57 is: 88,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.12 : 137,934.41 = 64,200.57 : x
  2. Step 2: Convert to fraction form
    99,962.12/137,934.41 = 64,200.57/x
  3. Step 3: Cross multiply
    99,962.12x = 137,934.41 × 64,200.57
  4. Step 4: Simplify right side
    99,962.12x = 8,855,467,423.61
  5. Step 5: Solve for x
    x = 8,855,467,423.61/99,962.12
  6. Step 6: Final answer
    x = 88,588.24

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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.