Home / 112,406.48-155,120.95-62,105.48

Finding the Fourth Proportional to 112,406.48, 155,120.95 and 62,105.48

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Solution

The fourth proportional to 112,406.48, 155,120.95 and 62,105.48 is: 85,705.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,406.48 : 155,120.95 = 62,105.48 : x
  2. Step 2: Convert to fraction form
    112,406.48/155,120.95 = 62,105.48/x
  3. Step 3: Cross multiply
    112,406.48x = 155,120.95 × 62,105.48
  4. Step 4: Simplify right side
    112,406.48x = 9,633,861,639.42
  5. Step 5: Solve for x
    x = 9,633,861,639.42/112,406.48
  6. Step 6: Final answer
    x = 85,705.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.