Home / 105,946.44-146,299.80-72,080.74

Finding the Fourth Proportional to 105,946.44, 146,299.80 and 72,080.74

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Solution

The fourth proportional to 105,946.44, 146,299.80 and 72,080.74 is: 99,535.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,946.44 : 146,299.80 = 72,080.74 : x
  2. Step 2: Convert to fraction form
    105,946.44/146,299.80 = 72,080.74/x
  3. Step 3: Cross multiply
    105,946.44x = 146,299.80 × 72,080.74
  4. Step 4: Simplify right side
    105,946.44x = 10,545,397,845.85
  5. Step 5: Solve for x
    x = 10,545,397,845.85/105,946.44
  6. Step 6: Final answer
    x = 99,535.18

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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.