Home / 90,197.07-135,265.91-31,031.43

Finding the Fourth Proportional to 90,197.07, 135,265.91 and 31,031.43

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Solution

The fourth proportional to 90,197.07, 135,265.91 and 31,031.43 is: 46,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,197.07 : 135,265.91 = 31,031.43 : x
  2. Step 2: Convert to fraction form
    90,197.07/135,265.91 = 31,031.43/x
  3. Step 3: Cross multiply
    90,197.07x = 135,265.91 × 31,031.43
  4. Step 4: Simplify right side
    90,197.07x = 4,197,494,462.39
  5. Step 5: Solve for x
    x = 4,197,494,462.39/90,197.07
  6. Step 6: Final answer
    x = 46,536.93

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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.