Home / 128,666.74-192,998.70-52,748.34

Finding the Fourth Proportional to 128,666.74, 192,998.70 and 52,748.34

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Solution

The fourth proportional to 128,666.74, 192,998.70 and 52,748.34 is: 79,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,666.74 : 192,998.70 = 52,748.34 : x
  2. Step 2: Convert to fraction form
    128,666.74/192,998.70 = 52,748.34/x
  3. Step 3: Cross multiply
    128,666.74x = 192,998.70 × 52,748.34
  4. Step 4: Simplify right side
    128,666.74x = 10,180,361,047.16
  5. Step 5: Solve for x
    x = 10,180,361,047.16/128,666.74
  6. Step 6: Final answer
    x = 79,121.93

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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.