Home / 105,444.57-145,515.86-57,697.90

Finding the Fourth Proportional to 105,444.57, 145,515.86 and 57,697.90

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Solution

The fourth proportional to 105,444.57, 145,515.86 and 57,697.90 is: 79,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,444.57 : 145,515.86 = 57,697.90 : x
  2. Step 2: Convert to fraction form
    105,444.57/145,515.86 = 57,697.90/x
  3. Step 3: Cross multiply
    105,444.57x = 145,515.86 × 57,697.90
  4. Step 4: Simplify right side
    105,444.57x = 8,395,959,538.69
  5. Step 5: Solve for x
    x = 8,395,959,538.69/105,444.57
  6. Step 6: Final answer
    x = 79,624.39

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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.