Home / 138,773.61-191,511.06-85,088.22

Finding the Fourth Proportional to 138,773.61, 191,511.06 and 85,088.22

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Solution

The fourth proportional to 138,773.61, 191,511.06 and 85,088.22 is: 117,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,773.61 : 191,511.06 = 85,088.22 : x
  2. Step 2: Convert to fraction form
    138,773.61/191,511.06 = 85,088.22/x
  3. Step 3: Cross multiply
    138,773.61x = 191,511.06 × 85,088.22
  4. Step 4: Simplify right side
    138,773.61x = 16,295,335,205.71
  5. Step 5: Solve for x
    x = 16,295,335,205.71/138,773.61
  6. Step 6: Final answer
    x = 117,423.88

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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.