Home / 135,642.02-187,185.06-75,212.69

Finding the Fourth Proportional to 135,642.02, 187,185.06 and 75,212.69

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Solution

The fourth proportional to 135,642.02, 187,185.06 and 75,212.69 is: 103,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,642.02 : 187,185.06 = 75,212.69 : x
  2. Step 2: Convert to fraction form
    135,642.02/187,185.06 = 75,212.69/x
  3. Step 3: Cross multiply
    135,642.02x = 187,185.06 × 75,212.69
  4. Step 4: Simplify right side
    135,642.02x = 14,078,690,954.49
  5. Step 5: Solve for x
    x = 14,078,690,954.49/135,642.02
  6. Step 6: Final answer
    x = 103,792.99

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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.