Home / 105,714.54-145,886.70-57,316.86

Finding the Fourth Proportional to 105,714.54, 145,886.70 and 57,316.86

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Solution

The fourth proportional to 105,714.54, 145,886.70 and 57,316.86 is: 79,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,714.54 : 145,886.70 = 57,316.86 : x
  2. Step 2: Convert to fraction form
    105,714.54/145,886.70 = 57,316.86/x
  3. Step 3: Cross multiply
    105,714.54x = 145,886.70 × 57,316.86
  4. Step 4: Simplify right side
    105,714.54x = 8,361,767,559.76
  5. Step 5: Solve for x
    x = 8,361,767,559.76/105,714.54
  6. Step 6: Final answer
    x = 79,097.61

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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.