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Finding the Fourth Proportional to 143,795.60, 215,717.16 and 64,908.08

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Solution

The fourth proportional to 143,795.60, 215,717.16 and 64,908.08 is: 97,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,795.60 : 215,717.16 = 64,908.08 : x
  2. Step 2: Convert to fraction form
    143,795.60/215,717.16 = 64,908.08/x
  3. Step 3: Cross multiply
    143,795.60x = 215,717.16 × 64,908.08
  4. Step 4: Simplify right side
    143,795.60x = 14,001,786,678.65
  5. Step 5: Solve for x
    x = 14,001,786,678.65/143,795.60
  6. Step 6: Final answer
    x = 97,372.85

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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.