Home / 118,637.76-163,716.12-64,919.17

Finding the Fourth Proportional to 118,637.76, 163,716.12 and 64,919.17

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Solution

The fourth proportional to 118,637.76, 163,716.12 and 64,919.17 is: 89,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,637.76 : 163,716.12 = 64,919.17 : x
  2. Step 2: Convert to fraction form
    118,637.76/163,716.12 = 64,919.17/x
  3. Step 3: Cross multiply
    118,637.76x = 163,716.12 × 64,919.17
  4. Step 4: Simplify right side
    118,637.76x = 10,628,314,626.02
  5. Step 5: Solve for x
    x = 10,628,314,626.02/118,637.76
  6. Step 6: Final answer
    x = 89,586.27

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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.