Home / 105,733.97-145,912.89-57,988.32

Finding the Fourth Proportional to 105,733.97, 145,912.89 and 57,988.32

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Solution

The fourth proportional to 105,733.97, 145,912.89 and 57,988.32 is: 80,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,733.97 : 145,912.89 = 57,988.32 : x
  2. Step 2: Convert to fraction form
    105,733.97/145,912.89 = 57,988.32/x
  3. Step 3: Cross multiply
    105,733.97x = 145,912.89 × 57,988.32
  4. Step 4: Simplify right side
    105,733.97x = 8,461,243,357.44
  5. Step 5: Solve for x
    x = 8,461,243,357.44/105,733.97
  6. Step 6: Final answer
    x = 80,023.89

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1.5x scale

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.