Home / 128,060.11-192,048.63-42,648.22

Finding the Fourth Proportional to 128,060.11, 192,048.63 and 42,648.22

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Solution

The fourth proportional to 128,060.11, 192,048.63 and 42,648.22 is: 63,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,060.11 : 192,048.63 = 42,648.22 : x
  2. Step 2: Convert to fraction form
    128,060.11/192,048.63 = 42,648.22/x
  3. Step 3: Cross multiply
    128,060.11x = 192,048.63 × 42,648.22
  4. Step 4: Simplify right side
    128,060.11x = 8,190,532,222.94
  5. Step 5: Solve for x
    x = 8,190,532,222.94/128,060.11
  6. Step 6: Final answer
    x = 63,958.50

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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.