Home / 128,063.04-192,162.24-90,863.52

Finding the Fourth Proportional to 128,063.04, 192,162.24 and 90,863.52

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Solution

The fourth proportional to 128,063.04, 192,162.24 and 90,863.52 is: 136,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,063.04 : 192,162.24 = 90,863.52 : x
  2. Step 2: Convert to fraction form
    128,063.04/192,162.24 = 90,863.52/x
  3. Step 3: Cross multiply
    128,063.04x = 192,162.24 × 90,863.52
  4. Step 4: Simplify right side
    128,063.04x = 17,460,537,537.48
  5. Step 5: Solve for x
    x = 17,460,537,537.48/128,063.04
  6. Step 6: Final answer
    x = 136,343.30

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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.