Home / 128,981.03-193,472.75-39,024.45

Finding the Fourth Proportional to 128,981.03, 193,472.75 and 39,024.45

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Solution

The fourth proportional to 128,981.03, 193,472.75 and 39,024.45 is: 58,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,981.03 : 193,472.75 = 39,024.45 : x
  2. Step 2: Convert to fraction form
    128,981.03/193,472.75 = 39,024.45/x
  3. Step 3: Cross multiply
    128,981.03x = 193,472.75 × 39,024.45
  4. Step 4: Simplify right side
    128,981.03x = 7,550,167,756.30
  5. Step 5: Solve for x
    x = 7,550,167,756.30/128,981.03
  6. Step 6: Final answer
    x = 58,537.04

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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.