Home / 99,899.19-137,863.59-59,636.32

Finding the Fourth Proportional to 99,899.19, 137,863.59 and 59,636.32

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Solution

The fourth proportional to 99,899.19, 137,863.59 and 59,636.32 is: 82,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,899.19 : 137,863.59 = 59,636.32 : x
  2. Step 2: Convert to fraction form
    99,899.19/137,863.59 = 59,636.32/x
  3. Step 3: Cross multiply
    99,899.19x = 137,863.59 × 59,636.32
  4. Step 4: Simplify right side
    99,899.19x = 8,221,677,169.59
  5. Step 5: Solve for x
    x = 8,221,677,169.59/99,899.19
  6. Step 6: Final answer
    x = 82,299.74

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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.