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Finding the Fourth Proportional to 162,122.99, 223,720.45 and 90,507.56

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Solution

The fourth proportional to 162,122.99, 223,720.45 and 90,507.56 is: 124,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,122.99 : 223,720.45 = 90,507.56 : x
  2. Step 2: Convert to fraction form
    162,122.99/223,720.45 = 90,507.56/x
  3. Step 3: Cross multiply
    162,122.99x = 223,720.45 × 90,507.56
  4. Step 4: Simplify right side
    162,122.99x = 20,248,390,706.73
  5. Step 5: Solve for x
    x = 20,248,390,706.73/162,122.99
  6. Step 6: Final answer
    x = 124,895.25

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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.