Home / 105,231.63-145,222.49-62,814.77

Finding the Fourth Proportional to 105,231.63, 145,222.49 and 62,814.77

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Solution

The fourth proportional to 105,231.63, 145,222.49 and 62,814.77 is: 86,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,231.63 : 145,222.49 = 62,814.77 : x
  2. Step 2: Convert to fraction form
    105,231.63/145,222.49 = 62,814.77/x
  3. Step 3: Cross multiply
    105,231.63x = 145,222.49 × 62,814.77
  4. Step 4: Simplify right side
    105,231.63x = 9,122,116,739.10
  5. Step 5: Solve for x
    x = 9,122,116,739.10/105,231.63
  6. Step 6: Final answer
    x = 86,686.07

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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.