Home / 105,313.64-145,342.98-62,306.96

Finding the Fourth Proportional to 105,313.64, 145,342.98 and 62,306.96

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Solution

The fourth proportional to 105,313.64, 145,342.98 and 62,306.96 is: 85,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,313.64 : 145,342.98 = 62,306.96 : x
  2. Step 2: Convert to fraction form
    105,313.64/145,342.98 = 62,306.96/x
  3. Step 3: Cross multiply
    105,313.64x = 145,342.98 × 62,306.96
  4. Step 4: Simplify right side
    105,313.64x = 9,055,878,514.43
  5. Step 5: Solve for x
    x = 9,055,878,514.43/105,313.64
  6. Step 6: Final answer
    x = 85,989.61

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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.