Home / 128,265.36-192,148.92-61,752.21

Finding the Fourth Proportional to 128,265.36, 192,148.92 and 61,752.21

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Solution

The fourth proportional to 128,265.36, 192,148.92 and 61,752.21 is: 92,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,265.36 : 192,148.92 = 61,752.21 : x
  2. Step 2: Convert to fraction form
    128,265.36/192,148.92 = 61,752.21/x
  3. Step 3: Cross multiply
    128,265.36x = 192,148.92 × 61,752.21
  4. Step 4: Simplify right side
    128,265.36x = 11,865,620,459.11
  5. Step 5: Solve for x
    x = 11,865,620,459.11/128,265.36
  6. Step 6: Final answer
    x = 92,508.38

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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.