Home / 159,865.81-239,746.79-53,221.12

Finding the Fourth Proportional to 159,865.81, 239,746.79 and 53,221.12

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Solution

The fourth proportional to 159,865.81, 239,746.79 and 53,221.12 is: 79,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,865.81 : 239,746.79 = 53,221.12 : x
  2. Step 2: Convert to fraction form
    159,865.81/239,746.79 = 53,221.12/x
  3. Step 3: Cross multiply
    159,865.81x = 239,746.79 × 53,221.12
  4. Step 4: Simplify right side
    159,865.81x = 12,759,592,680.20
  5. Step 5: Solve for x
    x = 12,759,592,680.20/159,865.81
  6. Step 6: Final answer
    x = 79,814.39

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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.