Home / 136,217.76-187,975.77-74,958.23

Finding the Fourth Proportional to 136,217.76, 187,975.77 and 74,958.23

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Solution

The fourth proportional to 136,217.76, 187,975.77 and 74,958.23 is: 103,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,217.76 : 187,975.77 = 74,958.23 : x
  2. Step 2: Convert to fraction form
    136,217.76/187,975.77 = 74,958.23/x
  3. Step 3: Cross multiply
    136,217.76x = 187,975.77 × 74,958.23
  4. Step 4: Simplify right side
    136,217.76x = 14,090,330,062.21
  5. Step 5: Solve for x
    x = 14,090,330,062.21/136,217.76
  6. Step 6: Final answer
    x = 103,439.74

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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.