Home / 99,883.14-137,858.10-64,118.40

Finding the Fourth Proportional to 99,883.14, 137,858.10 and 64,118.40

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Solution

The fourth proportional to 99,883.14, 137,858.10 and 64,118.40 is: 88,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,883.14 : 137,858.10 = 64,118.40 : x
  2. Step 2: Convert to fraction form
    99,883.14/137,858.10 = 64,118.40/x
  3. Step 3: Cross multiply
    99,883.14x = 137,858.10 × 64,118.40
  4. Step 4: Simplify right side
    99,883.14x = 8,839,240,799.04
  5. Step 5: Solve for x
    x = 8,839,240,799.04/99,883.14
  6. Step 6: Final answer
    x = 88,495.82

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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.