Home / 162,239.41-223,877.72-89,639.21

Finding the Fourth Proportional to 162,239.41, 223,877.72 and 89,639.21

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Solution

The fourth proportional to 162,239.41, 223,877.72 and 89,639.21 is: 123,695.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,239.41 : 223,877.72 = 89,639.21 : x
  2. Step 2: Convert to fraction form
    162,239.41/223,877.72 = 89,639.21/x
  3. Step 3: Cross multiply
    162,239.41x = 223,877.72 × 89,639.21
  4. Step 4: Simplify right side
    162,239.41x = 20,068,221,481.88
  5. Step 5: Solve for x
    x = 20,068,221,481.88/162,239.41
  6. Step 6: Final answer
    x = 123,695.11

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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.