Home / 135,771.07-187,366.13-75,345.62

Finding the Fourth Proportional to 135,771.07, 187,366.13 and 75,345.62

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Solution

The fourth proportional to 135,771.07, 187,366.13 and 75,345.62 is: 103,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,771.07 : 187,366.13 = 75,345.62 : x
  2. Step 2: Convert to fraction form
    135,771.07/187,366.13 = 75,345.62/x
  3. Step 3: Cross multiply
    135,771.07x = 187,366.13 × 75,345.62
  4. Step 4: Simplify right side
    135,771.07x = 14,117,217,834.02
  5. Step 5: Solve for x
    x = 14,117,217,834.02/135,771.07
  6. Step 6: Final answer
    x = 103,978.10

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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.