Home / 169,271.26-253,931.50-90,342.43

Finding the Fourth Proportional to 169,271.26, 253,931.50 and 90,342.43

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Solution

The fourth proportional to 169,271.26, 253,931.50 and 90,342.43 is: 135,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,271.26 : 253,931.50 = 90,342.43 : x
  2. Step 2: Convert to fraction form
    169,271.26/253,931.50 = 90,342.43/x
  3. Step 3: Cross multiply
    169,271.26x = 253,931.50 × 90,342.43
  4. Step 4: Simplify right side
    169,271.26x = 22,940,788,763.55
  5. Step 5: Solve for x
    x = 22,940,788,763.55/169,271.26
  6. Step 6: Final answer
    x = 135,526.78

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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.