Home / 105,285.93-145,247.94-62,819.79

Finding the Fourth Proportional to 105,285.93, 145,247.94 and 62,819.79

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Solution

The fourth proportional to 105,285.93, 145,247.94 and 62,819.79 is: 86,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.93 : 145,247.94 = 62,819.79 : x
  2. Step 2: Convert to fraction form
    105,285.93/145,247.94 = 62,819.79/x
  3. Step 3: Cross multiply
    105,285.93x = 145,247.94 × 62,819.79
  4. Step 4: Simplify right side
    105,285.93x = 9,124,445,088.73
  5. Step 5: Solve for x
    x = 9,124,445,088.73/105,285.93
  6. Step 6: Final answer
    x = 86,663.48

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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.