Home / 140,378.13-210,589.07-84,205.04

Finding the Fourth Proportional to 140,378.13, 210,589.07 and 84,205.04

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Solution

The fourth proportional to 140,378.13, 210,589.07 and 84,205.04 is: 126,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,378.13 : 210,589.07 = 84,205.04 : x
  2. Step 2: Convert to fraction form
    140,378.13/210,589.07 = 84,205.04/x
  3. Step 3: Cross multiply
    140,378.13x = 210,589.07 × 84,205.04
  4. Step 4: Simplify right side
    140,378.13x = 17,732,661,010.19
  5. Step 5: Solve for x
    x = 17,732,661,010.19/140,378.13
  6. Step 6: Final answer
    x = 126,320.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.