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Finding the Fourth Proportional to 163,093.65, 225,082.79 and 90,503.36

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Solution

The fourth proportional to 163,093.65, 225,082.79 and 90,503.36 is: 124,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,093.65 : 225,082.79 = 90,503.36 : x
  2. Step 2: Convert to fraction form
    163,093.65/225,082.79 = 90,503.36/x
  3. Step 3: Cross multiply
    163,093.65x = 225,082.79 × 90,503.36
  4. Step 4: Simplify right side
    163,093.65x = 20,370,748,349.35
  5. Step 5: Solve for x
    x = 20,370,748,349.35/163,093.65
  6. Step 6: Final answer
    x = 124,902.16

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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.