Home / 107,200.02-147,800.07-76,609.65

Finding the Fourth Proportional to 107,200.02, 147,800.07 and 76,609.65

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Solution

The fourth proportional to 107,200.02, 147,800.07 and 76,609.65 is: 105,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,200.02 : 147,800.07 = 76,609.65 : x
  2. Step 2: Convert to fraction form
    107,200.02/147,800.07 = 76,609.65/x
  3. Step 3: Cross multiply
    107,200.02x = 147,800.07 × 76,609.65
  4. Step 4: Simplify right side
    107,200.02x = 11,322,911,632.68
  5. Step 5: Solve for x
    x = 11,322,911,632.68/107,200.02
  6. Step 6: Final answer
    x = 105,624.16

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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.