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Finding the Fourth Proportional to 143,173.58, 214,598.34 and 72,904.46

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Solution

The fourth proportional to 143,173.58, 214,598.34 and 72,904.46 is: 109,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,173.58 : 214,598.34 = 72,904.46 : x
  2. Step 2: Convert to fraction form
    143,173.58/214,598.34 = 72,904.46/x
  3. Step 3: Cross multiply
    143,173.58x = 214,598.34 × 72,904.46
  4. Step 4: Simplify right side
    143,173.58x = 15,645,176,094.60
  5. Step 5: Solve for x
    x = 15,645,176,094.60/143,173.58
  6. Step 6: Final answer
    x = 109,274.18

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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.