Home / 128,038.12-192,306.14-104,363.03

Finding the Fourth Proportional to 128,038.12, 192,306.14 and 104,363.03

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Solution

The fourth proportional to 128,038.12, 192,306.14 and 104,363.03 is: 156,747.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,038.12 : 192,306.14 = 104,363.03 : x
  2. Step 2: Convert to fraction form
    128,038.12/192,306.14 = 104,363.03/x
  3. Step 3: Cross multiply
    128,038.12x = 192,306.14 × 104,363.03
  4. Step 4: Simplify right side
    128,038.12x = 20,069,651,458.00
  5. Step 5: Solve for x
    x = 20,069,651,458.00/128,038.12
  6. Step 6: Final answer
    x = 156,747.47

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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.