Home / 128,254.98-192,373.34-39,499.23

Finding the Fourth Proportional to 128,254.98, 192,373.34 and 39,499.23

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Solution

The fourth proportional to 128,254.98, 192,373.34 and 39,499.23 is: 59,246.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,254.98 : 192,373.34 = 39,499.23 : x
  2. Step 2: Convert to fraction form
    128,254.98/192,373.34 = 39,499.23/x
  3. Step 3: Cross multiply
    128,254.98x = 192,373.34 × 39,499.23
  4. Step 4: Simplify right side
    128,254.98x = 7,598,598,802.53
  5. Step 5: Solve for x
    x = 7,598,598,802.53/128,254.98
  6. Step 6: Final answer
    x = 59,246.03

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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.