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Finding the Fourth Proportional to 162,102.68, 243,153.63 and 90,101.34

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Solution

The fourth proportional to 162,102.68, 243,153.63 and 90,101.34 is: 135,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,102.68 : 243,153.63 = 90,101.34 : x
  2. Step 2: Convert to fraction form
    162,102.68/243,153.63 = 90,101.34/x
  3. Step 3: Cross multiply
    162,102.68x = 243,153.63 × 90,101.34
  4. Step 4: Simplify right side
    162,102.68x = 21,908,467,888.86
  5. Step 5: Solve for x
    x = 21,908,467,888.86/162,102.68
  6. Step 6: Final answer
    x = 135,151.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.