Home / 149,173.74-205,864.65-85,523.58

Finding the Fourth Proportional to 149,173.74, 205,864.65 and 85,523.58

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Solution

The fourth proportional to 149,173.74, 205,864.65 and 85,523.58 is: 118,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,173.74 : 205,864.65 = 85,523.58 : x
  2. Step 2: Convert to fraction form
    149,173.74/205,864.65 = 85,523.58/x
  3. Step 3: Cross multiply
    149,173.74x = 205,864.65 × 85,523.58
  4. Step 4: Simplify right side
    149,173.74x = 17,606,281,863.45
  5. Step 5: Solve for x
    x = 17,606,281,863.45/149,173.74
  6. Step 6: Final answer
    x = 118,025.34

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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.