Home / 135,818.51-187,426.04-75,387.38

Finding the Fourth Proportional to 135,818.51, 187,426.04 and 75,387.38

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Solution

The fourth proportional to 135,818.51, 187,426.04 and 75,387.38 is: 104,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,818.51 : 187,426.04 = 75,387.38 : x
  2. Step 2: Convert to fraction form
    135,818.51/187,426.04 = 75,387.38/x
  3. Step 3: Cross multiply
    135,818.51x = 187,426.04 × 75,387.38
  4. Step 4: Simplify right side
    135,818.51x = 14,129,556,785.31
  5. Step 5: Solve for x
    x = 14,129,556,785.31/135,818.51
  6. Step 6: Final answer
    x = 104,032.63

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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.