Home / 105,934.95-146,283.93-72,069.24

Finding the Fourth Proportional to 105,934.95, 146,283.93 and 72,069.24

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Solution

The fourth proportional to 105,934.95, 146,283.93 and 72,069.24 is: 99,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,934.95 : 146,283.93 = 72,069.24 : x
  2. Step 2: Convert to fraction form
    105,934.95/146,283.93 = 72,069.24/x
  3. Step 3: Cross multiply
    105,934.95x = 146,283.93 × 72,069.24
  4. Step 4: Simplify right side
    105,934.95x = 10,542,571,659.31
  5. Step 5: Solve for x
    x = 10,542,571,659.31/105,934.95
  6. Step 6: Final answer
    x = 99,519.30

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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.