Home / 165,800.55-228,804.69-90,349.05

Finding the Fourth Proportional to 165,800.55, 228,804.69 and 90,349.05

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Solution

The fourth proportional to 165,800.55, 228,804.69 and 90,349.05 is: 124,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,800.55 : 228,804.69 = 90,349.05 : x
  2. Step 2: Convert to fraction form
    165,800.55/228,804.69 = 90,349.05/x
  3. Step 3: Cross multiply
    165,800.55x = 228,804.69 × 90,349.05
  4. Step 4: Simplify right side
    165,800.55x = 20,672,286,377.04
  5. Step 5: Solve for x
    x = 20,672,286,377.04/165,800.55
  6. Step 6: Final answer
    x = 124,681.65

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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.