Home / 165,436.59-228,302.64-89,985.09

Finding the Fourth Proportional to 165,436.59, 228,302.64 and 89,985.09

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Solution

The fourth proportional to 165,436.59, 228,302.64 and 89,985.09 is: 124,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,436.59 : 228,302.64 = 89,985.09 : x
  2. Step 2: Convert to fraction form
    165,436.59/228,302.64 = 89,985.09/x
  3. Step 3: Cross multiply
    165,436.59x = 228,302.64 × 89,985.09
  4. Step 4: Simplify right side
    165,436.59x = 20,543,833,607.64
  5. Step 5: Solve for x
    x = 20,543,833,607.64/165,436.59
  6. Step 6: Final answer
    x = 124,179.50

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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.