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Finding the Fourth Proportional to 165,825.52, 228,838.80 and 90,373.84

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Solution

The fourth proportional to 165,825.52, 228,838.80 and 90,373.84 is: 124,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,825.52 : 228,838.80 = 90,373.84 : x
  2. Step 2: Convert to fraction form
    165,825.52/228,838.80 = 90,373.84/x
  3. Step 3: Cross multiply
    165,825.52x = 228,838.80 × 90,373.84
  4. Step 4: Simplify right side
    165,825.52x = 20,681,041,096.99
  5. Step 5: Solve for x
    x = 20,681,041,096.99/165,825.52
  6. Step 6: Final answer
    x = 124,715.67

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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.