Home / 105,538.82-145,641.04-57,794.18

Finding the Fourth Proportional to 105,538.82, 145,641.04 and 57,794.18

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Solution

The fourth proportional to 105,538.82, 145,641.04 and 57,794.18 is: 79,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538.82 : 145,641.04 = 57,794.18 : x
  2. Step 2: Convert to fraction form
    105,538.82/145,641.04 = 57,794.18/x
  3. Step 3: Cross multiply
    105,538.82x = 145,641.04 × 57,794.18
  4. Step 4: Simplify right side
    105,538.82x = 8,417,203,608.46
  5. Step 5: Solve for x
    x = 8,417,203,608.46/105,538.82
  6. Step 6: Final answer
    x = 79,754.58

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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.