Home / 106,740.05-147,295.40-58,990.55

Finding the Fourth Proportional to 106,740.05, 147,295.40 and 58,990.55

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Solution

The fourth proportional to 106,740.05, 147,295.40 and 58,990.55 is: 81,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,740.05 : 147,295.40 = 58,990.55 : x
  2. Step 2: Convert to fraction form
    106,740.05/147,295.40 = 58,990.55/x
  3. Step 3: Cross multiply
    106,740.05x = 147,295.40 × 58,990.55
  4. Step 4: Simplify right side
    106,740.05x = 8,689,035,627.04
  5. Step 5: Solve for x
    x = 8,689,035,627.04/106,740.05
  6. Step 6: Final answer
    x = 81,403.71

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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.