Home / 107,128.10-147,847.38-59,390.68

Finding the Fourth Proportional to 107,128.10, 147,847.38 and 59,390.68

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Solution

The fourth proportional to 107,128.10, 147,847.38 and 59,390.68 is: 81,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.10 : 147,847.38 = 59,390.68 : x
  2. Step 2: Convert to fraction form
    107,128.10/147,847.38 = 59,390.68/x
  3. Step 3: Cross multiply
    107,128.10x = 147,847.38 × 59,390.68
  4. Step 4: Simplify right side
    107,128.10x = 8,780,755,695.18
  5. Step 5: Solve for x
    x = 8,780,755,695.18/107,128.10
  6. Step 6: Final answer
    x = 81,965.01

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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.