Home / 128,048.04-192,022.85-88,485.21

Finding the Fourth Proportional to 128,048.04, 192,022.85 and 88,485.21

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Solution

The fourth proportional to 128,048.04, 192,022.85 and 88,485.21 is: 132,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,048.04 : 192,022.85 = 88,485.21 : x
  2. Step 2: Convert to fraction form
    128,048.04/192,022.85 = 88,485.21/x
  3. Step 3: Cross multiply
    128,048.04x = 192,022.85 × 88,485.21
  4. Step 4: Simplify right side
    128,048.04x = 16,991,182,428.26
  5. Step 5: Solve for x
    x = 16,991,182,428.26/128,048.04
  6. Step 6: Final answer
    x = 132,693.81

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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.