Home / 165,769.92-228,762.40-90,318.40

Finding the Fourth Proportional to 165,769.92, 228,762.40 and 90,318.40

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Solution

The fourth proportional to 165,769.92, 228,762.40 and 90,318.40 is: 124,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,769.92 : 228,762.40 = 90,318.40 : x
  2. Step 2: Convert to fraction form
    165,769.92/228,762.40 = 90,318.40/x
  3. Step 3: Cross multiply
    165,769.92x = 228,762.40 × 90,318.40
  4. Step 4: Simplify right side
    165,769.92x = 20,661,453,948.16
  5. Step 5: Solve for x
    x = 20,661,453,948.16/165,769.92
  6. Step 6: Final answer
    x = 124,639.34

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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.